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Finding the Fourth Proportional to 524,085.80, 786,128.70 and 224,515.40

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Solution

The fourth proportional to 524,085.80, 786,128.70 and 224,515.40 is: 336,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,085.80 : 786,128.70 = 224,515.40 : x
  2. Step 2: Convert to fraction form
    524,085.80/786,128.70 = 224,515.40/x
  3. Step 3: Cross multiply
    524,085.80x = 786,128.70 × 224,515.40
  4. Step 4: Simplify right side
    524,085.80x = 176,497,999,531.98
  5. Step 5: Solve for x
    x = 176,497,999,531.98/524,085.80
  6. Step 6: Final answer
    x = 336,773.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.