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Finding the Fourth Proportional to 690,073.45, 952,234.54 and 508,882.93

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Solution

The fourth proportional to 690,073.45, 952,234.54 and 508,882.93 is: 702,209.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,073.45 : 952,234.54 = 508,882.93 : x
  2. Step 2: Convert to fraction form
    690,073.45/952,234.54 = 508,882.93/x
  3. Step 3: Cross multiply
    690,073.45x = 952,234.54 × 508,882.93
  4. Step 4: Simplify right side
    690,073.45x = 484,575,899,109.61
  5. Step 5: Solve for x
    x = 484,575,899,109.61/690,073.45
  6. Step 6: Final answer
    x = 702,209.16

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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.