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Finding the Fourth Proportional to 528,895.62, 729,375.57 and 347,287.14

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Solution

The fourth proportional to 528,895.62, 729,375.57 and 347,287.14 is: 478,927.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,895.62 : 729,375.57 = 347,287.14 : x
  2. Step 2: Convert to fraction form
    528,895.62/729,375.57 = 347,287.14/x
  3. Step 3: Cross multiply
    528,895.62x = 729,375.57 × 347,287.14
  4. Step 4: Simplify right side
    528,895.62x = 253,302,755,691.17
  5. Step 5: Solve for x
    x = 253,302,755,691.17/528,895.62
  6. Step 6: Final answer
    x = 478,927.69

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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.