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Finding the Fourth Proportional to 982,693,257.20, 1,474,039,885.80 and 907,866,364.40

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Solution

The fourth proportional to 982,693,257.20, 1,474,039,885.80 and 907,866,364.40 is: 1,361,799,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,693,257.20 : 1,474,039,885.80 = 907,866,364.40 : x
  2. Step 2: Convert to fraction form
    982,693,257.20/1,474,039,885.80 = 907,866,364.40/x
  3. Step 3: Cross multiply
    982,693,257.20x = 1,474,039,885.80 × 907,866,364.40
  4. Step 4: Simplify right side
    982,693,257.20x = 1,338,231,232,101,837,056
  5. Step 5: Solve for x
    x = 1,338,231,232,101,837,056/982,693,257.20
  6. Step 6: Final answer
    x = 1,361,799,546.60

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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.