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Finding the Fourth Proportional to 705,102,002.20, 988,163,169.80 and 705,102,002.20

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Solution

The fourth proportional to 705,102,002.20, 988,163,169.80 and 705,102,002.20 is: 988,163,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,102,002.20 : 988,163,169.80 = 705,102,002.20 : x
  2. Step 2: Convert to fraction form
    705,102,002.20/988,163,169.80 = 705,102,002.20/x
  3. Step 3: Cross multiply
    705,102,002.20x = 988,163,169.80 × 705,102,002.20
  4. Step 4: Simplify right side
    705,102,002.20x = 696,755,829,526,278,528
  5. Step 5: Solve for x
    x = 696,755,829,526,278,528/705,102,002.20
  6. Step 6: Final answer
    x = 988,163,169.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.