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Finding the Fourth Proportional to 637,847,794.40, 895,405,559.20 and 637,847,794.40

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Solution

The fourth proportional to 637,847,794.40, 895,405,559.20 and 637,847,794.40 is: 895,405,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,847,794.40 : 895,405,559.20 = 637,847,794.40 : x
  2. Step 2: Convert to fraction form
    637,847,794.40/895,405,559.20 = 637,847,794.40/x
  3. Step 3: Cross multiply
    637,847,794.40x = 895,405,559.20 × 637,847,794.40
  4. Step 4: Simplify right side
    637,847,794.40x = 571,132,461,029,218,624
  5. Step 5: Solve for x
    x = 571,132,461,029,218,624/637,847,794.40
  6. Step 6: Final answer
    x = 895,405,559.20

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Double scale
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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.