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Finding the Fourth Proportional to 653,461,641.80, 980,192,462.70 and 649,635,266.60

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Solution

The fourth proportional to 653,461,641.80, 980,192,462.70 and 649,635,266.60 is: 974,452,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,461,641.80 : 980,192,462.70 = 649,635,266.60 : x
  2. Step 2: Convert to fraction form
    653,461,641.80/980,192,462.70 = 649,635,266.60/x
  3. Step 3: Cross multiply
    653,461,641.80x = 980,192,462.70 × 649,635,266.60
  4. Step 4: Simplify right side
    653,461,641.80x = 636,767,591,825,425,152
  5. Step 5: Solve for x
    x = 636,767,591,825,425,152/653,461,641.80
  6. Step 6: Final answer
    x = 974,452,899.90

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Double scale
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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.