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Finding the Fourth Proportional to 326,748,891.60, 490,123,337.40 and 252,772,304.40

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Solution

The fourth proportional to 326,748,891.60, 490,123,337.40 and 252,772,304.40 is: 379,158,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,748,891.60 : 490,123,337.40 = 252,772,304.40 : x
  2. Step 2: Convert to fraction form
    326,748,891.60/490,123,337.40 = 252,772,304.40/x
  3. Step 3: Cross multiply
    326,748,891.60x = 490,123,337.40 × 252,772,304.40
  4. Step 4: Simplify right side
    326,748,891.60x = 123,889,605,434,816,704
  5. Step 5: Solve for x
    x = 123,889,605,434,816,704/326,748,891.60
  6. Step 6: Final answer
    x = 379,158,456.60

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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.