Home / 708,781,468.40-1,063,172,202.60-699,226,319.60

Finding the Fourth Proportional to 708,781,468.40, 1,063,172,202.60 and 699,226,319.60

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Solution

The fourth proportional to 708,781,468.40, 1,063,172,202.60 and 699,226,319.60 is: 1,048,839,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,781,468.40 : 1,063,172,202.60 = 699,226,319.60 : x
  2. Step 2: Convert to fraction form
    708,781,468.40/1,063,172,202.60 = 699,226,319.60/x
  3. Step 3: Cross multiply
    708,781,468.40x = 1,063,172,202.60 × 699,226,319.60
  4. Step 4: Simplify right side
    708,781,468.40x = 743,397,986,325,023,616
  5. Step 5: Solve for x
    x = 743,397,986,325,023,616/708,781,468.40
  6. Step 6: Final answer
    x = 1,048,839,479.40

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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.