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Finding the Fourth Proportional to 331,491.78, 497,385.18 and 173,683.32

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Solution

The fourth proportional to 331,491.78, 497,385.18 and 173,683.32 is: 260,602.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,491.78 : 497,385.18 = 173,683.32 : x
  2. Step 2: Convert to fraction form
    331,491.78/497,385.18 = 173,683.32/x
  3. Step 3: Cross multiply
    331,491.78x = 497,385.18 × 173,683.32
  4. Step 4: Simplify right side
    331,491.78x = 86,387,509,381.20
  5. Step 5: Solve for x
    x = 86,387,509,381.20/331,491.78
  6. Step 6: Final answer
    x = 260,602.27

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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.