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Finding the Fourth Proportional to 693,248,229.98, 956,780,657.85 and 429,015,321.71

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Solution

The fourth proportional to 693,248,229.98, 956,780,657.85 and 429,015,321.71 is: 592,101,853.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,248,229.98 : 956,780,657.85 = 429,015,321.71 : x
  2. Step 2: Convert to fraction form
    693,248,229.98/956,780,657.85 = 429,015,321.71/x
  3. Step 3: Cross multiply
    693,248,229.98x = 956,780,657.85 × 429,015,321.71
  4. Step 4: Simplify right side
    693,248,229.98x = 410,473,561,728,639,296
  5. Step 5: Solve for x
    x = 410,473,561,728,639,296/693,248,229.98
  6. Step 6: Final answer
    x = 592,101,853.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.