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Finding the Fourth Proportional to 1,062,912,708.80, 1,594,369,063.20 and 917,510,451.20

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Solution

The fourth proportional to 1,062,912,708.80, 1,594,369,063.20 and 917,510,451.20 is: 1,376,265,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062,912,708.80 : 1,594,369,063.20 = 917,510,451.20 : x
  2. Step 2: Convert to fraction form
    1,062,912,708.80/1,594,369,063.20 = 917,510,451.20/x
  3. Step 3: Cross multiply
    1,062,912,708.80x = 1,594,369,063.20 × 917,510,451.20
  4. Step 4: Simplify right side
    1,062,912,708.80x = 1,462,850,278,555,953,408
  5. Step 5: Solve for x
    x = 1,462,850,278,555,953,408/1,062,912,708.80
  6. Step 6: Final answer
    x = 1,376,265,676.80

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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.