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Finding the Fourth Proportional to 679,335,308.10, 1,019,002,962.15 and 679,335,308.10

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Solution

The fourth proportional to 679,335,308.10, 1,019,002,962.15 and 679,335,308.10 is: 1,019,002,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,335,308.10 : 1,019,002,962.15 = 679,335,308.10 : x
  2. Step 2: Convert to fraction form
    679,335,308.10/1,019,002,962.15 = 679,335,308.10/x
  3. Step 3: Cross multiply
    679,335,308.10x = 1,019,002,962.15 × 679,335,308.10
  4. Step 4: Simplify right side
    679,335,308.10x = 692,244,691,246,982,912
  5. Step 5: Solve for x
    x = 692,244,691,246,982,912/679,335,308.10
  6. Step 6: Final answer
    x = 1,019,002,962.15

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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.