Home / 1,086,400,818.30-1,629,601,227.45-396,330,584.70

Finding the Fourth Proportional to 1,086,400,818.30, 1,629,601,227.45 and 396,330,584.70

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Solution

The fourth proportional to 1,086,400,818.30, 1,629,601,227.45 and 396,330,584.70 is: 594,495,877.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,400,818.30 : 1,629,601,227.45 = 396,330,584.70 : x
  2. Step 2: Convert to fraction form
    1,086,400,818.30/1,629,601,227.45 = 396,330,584.70/x
  3. Step 3: Cross multiply
    1,086,400,818.30x = 1,629,601,227.45 × 396,330,584.70
  4. Step 4: Simplify right side
    1,086,400,818.30x = 645,860,807,303,096,192
  5. Step 5: Solve for x
    x = 645,860,807,303,096,192/1,086,400,818.30
  6. Step 6: Final answer
    x = 594,495,877.05

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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.