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Finding the Fourth Proportional to 653,160.69, 901,204.01 and 381,073.29

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Solution

The fourth proportional to 653,160.69, 901,204.01 and 381,073.29 is: 525,789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,160.69 : 901,204.01 = 381,073.29 : x
  2. Step 2: Convert to fraction form
    653,160.69/901,204.01 = 381,073.29/x
  3. Step 3: Cross multiply
    653,160.69x = 901,204.01 × 381,073.29
  4. Step 4: Simplify right side
    653,160.69x = 343,424,775,146.53
  5. Step 5: Solve for x
    x = 343,424,775,146.53/653,160.69
  6. Step 6: Final answer
    x = 525,789.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.