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Finding the Fourth Proportional to 399,155.04, 598,414.44 and 230,483.88

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Solution

The fourth proportional to 399,155.04, 598,414.44 and 230,483.88 is: 345,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,155.04 : 598,414.44 = 230,483.88 : x
  2. Step 2: Convert to fraction form
    399,155.04/598,414.44 = 230,483.88/x
  3. Step 3: Cross multiply
    399,155.04x = 598,414.44 × 230,483.88
  4. Step 4: Simplify right side
    399,155.04x = 137,924,881,979.23
  5. Step 5: Solve for x
    x = 137,924,881,979.23/399,155.04
  6. Step 6: Final answer
    x = 345,542.13

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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.