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Finding the Fourth Proportional to 649,653,743.70, 974,480,615.55 and 504,534,921.30

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Solution

The fourth proportional to 649,653,743.70, 974,480,615.55 and 504,534,921.30 is: 756,802,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,653,743.70 : 974,480,615.55 = 504,534,921.30 : x
  2. Step 2: Convert to fraction form
    649,653,743.70/974,480,615.55 = 504,534,921.30/x
  3. Step 3: Cross multiply
    649,653,743.70x = 974,480,615.55 × 504,534,921.30
  4. Step 4: Simplify right side
    649,653,743.70x = 491,659,500,674,894,784
  5. Step 5: Solve for x
    x = 491,659,500,674,894,784/649,653,743.70
  6. Step 6: Final answer
    x = 756,802,381.95

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Double scale
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Similar ratio
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1.5x scale

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.