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Finding the Fourth Proportional to 616,321,796.60, 924,482,694.90 and 207,241,988.60

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Solution

The fourth proportional to 616,321,796.60, 924,482,694.90 and 207,241,988.60 is: 310,862,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,321,796.60 : 924,482,694.90 = 207,241,988.60 : x
  2. Step 2: Convert to fraction form
    616,321,796.60/924,482,694.90 = 207,241,988.60/x
  3. Step 3: Cross multiply
    616,321,796.60x = 924,482,694.90 × 207,241,988.60
  4. Step 4: Simplify right side
    616,321,796.60x = 191,591,632,117,363,072
  5. Step 5: Solve for x
    x = 191,591,632,117,363,072/616,321,796.60
  6. Step 6: Final answer
    x = 310,862,982.90

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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.