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Finding the Fourth Proportional to 574,792.80, 861,657.84 and 293,690.40

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Solution

The fourth proportional to 574,792.80, 861,657.84 and 293,690.40 is: 440,264.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,792.80 : 861,657.84 = 293,690.40 : x
  2. Step 2: Convert to fraction form
    574,792.80/861,657.84 = 293,690.40/x
  3. Step 3: Cross multiply
    574,792.80x = 861,657.84 × 293,690.40
  4. Step 4: Simplify right side
    574,792.80x = 253,060,635,692.74
  5. Step 5: Solve for x
    x = 253,060,635,692.74/574,792.80
  6. Step 6: Final answer
    x = 440,264.10

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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.