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Finding the Fourth Proportional to 525,757.07, 725,545.11 and 284,039.55

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Solution

The fourth proportional to 525,757.07, 725,545.11 and 284,039.55 is: 391,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,757.07 : 725,545.11 = 284,039.55 : x
  2. Step 2: Convert to fraction form
    525,757.07/725,545.11 = 284,039.55/x
  3. Step 3: Cross multiply
    525,757.07x = 725,545.11 × 284,039.55
  4. Step 4: Simplify right side
    525,757.07x = 206,083,506,549.10
  5. Step 5: Solve for x
    x = 206,083,506,549.10/525,757.07
  6. Step 6: Final answer
    x = 391,974.77

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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.