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Finding the Fourth Proportional to 518,897.53, 716,077.42 and 292,541.41

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Solution

The fourth proportional to 518,897.53, 716,077.42 and 292,541.41 is: 403,706.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,897.53 : 716,077.42 = 292,541.41 : x
  2. Step 2: Convert to fraction form
    518,897.53/716,077.42 = 292,541.41/x
  3. Step 3: Cross multiply
    518,897.53x = 716,077.42 × 292,541.41
  4. Step 4: Simplify right side
    518,897.53x = 209,482,298,115.96
  5. Step 5: Solve for x
    x = 209,482,298,115.96/518,897.53
  6. Step 6: Final answer
    x = 403,706.49

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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.