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Finding the Fourth Proportional to 626,781.29, 940,301.93 and 285,061.93

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Solution

The fourth proportional to 626,781.29, 940,301.93 and 285,061.93 is: 427,652.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,781.29 : 940,301.93 = 285,061.93 : x
  2. Step 2: Convert to fraction form
    626,781.29/940,301.93 = 285,061.93/x
  3. Step 3: Cross multiply
    626,781.29x = 940,301.93 × 285,061.93
  4. Step 4: Simplify right side
    626,781.29x = 268,044,281,310.43
  5. Step 5: Solve for x
    x = 268,044,281,310.43/626,781.29
  6. Step 6: Final answer
    x = 427,652.02

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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.