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Finding the Fourth Proportional to 707,461,491.20, 1,061,192,236.80 and 707,461,491.20

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Solution

The fourth proportional to 707,461,491.20, 1,061,192,236.80 and 707,461,491.20 is: 1,061,192,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,461,491.20 : 1,061,192,236.80 = 707,461,491.20 : x
  2. Step 2: Convert to fraction form
    707,461,491.20/1,061,192,236.80 = 707,461,491.20/x
  3. Step 3: Cross multiply
    707,461,491.20x = 1,061,192,236.80 × 707,461,491.20
  4. Step 4: Simplify right side
    707,461,491.20x = 750,752,642,296,391,552
  5. Step 5: Solve for x
    x = 750,752,642,296,391,552/707,461,491.20
  6. Step 6: Final answer
    x = 1,061,192,236.80

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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.