Home / 1,225,761.39-1,838,642.09-384,378.75

Finding the Fourth Proportional to 1,225,761.39, 1,838,642.09 and 384,378.75

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Solution

The fourth proportional to 1,225,761.39, 1,838,642.09 and 384,378.75 is: 576,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,761.39 : 1,838,642.09 = 384,378.75 : x
  2. Step 2: Convert to fraction form
    1,225,761.39/1,838,642.09 = 384,378.75/x
  3. Step 3: Cross multiply
    1,225,761.39x = 1,838,642.09 × 384,378.75
  4. Step 4: Simplify right side
    1,225,761.39x = 706,734,948,251.59
  5. Step 5: Solve for x
    x = 706,734,948,251.59/1,225,761.39
  6. Step 6: Final answer
    x = 576,568.13

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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.