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Finding the Fourth Proportional to 432,403.80, 648,605.70 and 151,949.40

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Solution

The fourth proportional to 432,403.80, 648,605.70 and 151,949.40 is: 227,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,403.80 : 648,605.70 = 151,949.40 : x
  2. Step 2: Convert to fraction form
    432,403.80/648,605.70 = 151,949.40/x
  3. Step 3: Cross multiply
    432,403.80x = 648,605.70 × 151,949.40
  4. Step 4: Simplify right side
    432,403.80x = 98,555,246,951.58
  5. Step 5: Solve for x
    x = 98,555,246,951.58/432,403.80
  6. Step 6: Final answer
    x = 227,924.10

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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.