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Finding the Fourth Proportional to 577,418.10, 866,127.15 and 549,861.90

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Solution

The fourth proportional to 577,418.10, 866,127.15 and 549,861.90 is: 824,792.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,418.10 : 866,127.15 = 549,861.90 : x
  2. Step 2: Convert to fraction form
    577,418.10/866,127.15 = 549,861.90/x
  3. Step 3: Cross multiply
    577,418.10x = 866,127.15 × 549,861.90
  4. Step 4: Simplify right side
    577,418.10x = 476,250,320,340.59
  5. Step 5: Solve for x
    x = 476,250,320,340.59/577,418.10
  6. Step 6: Final answer
    x = 824,792.85

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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.