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Finding the Fourth Proportional to 626,924.88, 865,607.04 and 385,531.92

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Solution

The fourth proportional to 626,924.88, 865,607.04 and 385,531.92 is: 532,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,924.88 : 865,607.04 = 385,531.92 : x
  2. Step 2: Convert to fraction form
    626,924.88/865,607.04 = 385,531.92/x
  3. Step 3: Cross multiply
    626,924.88x = 865,607.04 × 385,531.92
  4. Step 4: Simplify right side
    626,924.88x = 333,719,144,096.72
  5. Step 5: Solve for x
    x = 333,719,144,096.72/626,924.88
  6. Step 6: Final answer
    x = 532,311.21

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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.