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Finding the Fourth Proportional to 518,899.53, 716,080.17 and 292,543.41

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Solution

The fourth proportional to 518,899.53, 716,080.17 and 292,543.41 is: 403,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,899.53 : 716,080.17 = 292,543.41 : x
  2. Step 2: Convert to fraction form
    518,899.53/716,080.17 = 292,543.41/x
  3. Step 3: Cross multiply
    518,899.53x = 716,080.17 × 292,543.41
  4. Step 4: Simplify right side
    518,899.53x = 209,484,534,765.18
  5. Step 5: Solve for x
    x = 209,484,534,765.18/518,899.53
  6. Step 6: Final answer
    x = 403,709.24

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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.