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Finding the Fourth Proportional to 487,956,393,007.40, 731,934,589,511.10 and 487,956,393,007.40

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Solution

The fourth proportional to 487,956,393,007.40, 731,934,589,511.10 and 487,956,393,007.40 is: 731,934,589,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,956,393,007.40 : 731,934,589,511.10 = 487,956,393,007.40 : x
  2. Step 2: Convert to fraction form
    487,956,393,007.40/731,934,589,511.10 = 487,956,393,007.40/x
  3. Step 3: Cross multiply
    487,956,393,007.40x = 731,934,589,511.10 × 487,956,393,007.40
  4. Step 4: Simplify right side
    487,956,393,007.40x = 357,152,162,215,188,295,057,408
  5. Step 5: Solve for x
    x = 357,152,162,215,188,295,057,408/487,956,393,007.40
  6. Step 6: Final answer
    x = 731,934,589,511.10

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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.