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Finding the Fourth Proportional to 663,909,475.80, 995,864,213.70 and 337,392,125.40

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Solution

The fourth proportional to 663,909,475.80, 995,864,213.70 and 337,392,125.40 is: 506,088,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,909,475.80 : 995,864,213.70 = 337,392,125.40 : x
  2. Step 2: Convert to fraction form
    663,909,475.80/995,864,213.70 = 337,392,125.40/x
  3. Step 3: Cross multiply
    663,909,475.80x = 995,864,213.70 × 337,392,125.40
  4. Step 4: Simplify right side
    663,909,475.80x = 335,996,743,670,042,816
  5. Step 5: Solve for x
    x = 335,996,743,670,042,816/663,909,475.80
  6. Step 6: Final answer
    x = 506,088,188.10

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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.