Home / 739,712,003.40-1,109,568,005.10-376,914,947.40

Finding the Fourth Proportional to 739,712,003.40, 1,109,568,005.10 and 376,914,947.40

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Solution

The fourth proportional to 739,712,003.40, 1,109,568,005.10 and 376,914,947.40 is: 565,372,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,712,003.40 : 1,109,568,005.10 = 376,914,947.40 : x
  2. Step 2: Convert to fraction form
    739,712,003.40/1,109,568,005.10 = 376,914,947.40/x
  3. Step 3: Cross multiply
    739,712,003.40x = 1,109,568,005.10 × 376,914,947.40
  4. Step 4: Simplify right side
    739,712,003.40x = 418,212,766,278,989,376
  5. Step 5: Solve for x
    x = 418,212,766,278,989,376/739,712,003.40
  6. Step 6: Final answer
    x = 565,372,421.10

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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.