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Finding the Fourth Proportional to 637,861,503.40, 895,424,751.80 and 637,861,503.40

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Solution

The fourth proportional to 637,861,503.40, 895,424,751.80 and 637,861,503.40 is: 895,424,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,861,503.40 : 895,424,751.80 = 637,861,503.40 : x
  2. Step 2: Convert to fraction form
    637,861,503.40/895,424,751.80 = 637,861,503.40/x
  3. Step 3: Cross multiply
    637,861,503.40x = 895,424,751.80 × 637,861,503.40
  4. Step 4: Simplify right side
    637,861,503.40x = 571,156,978,364,719,808
  5. Step 5: Solve for x
    x = 571,156,978,364,719,808/637,861,503.40
  6. Step 6: Final answer
    x = 895,424,751.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.