Home / 931,704.12-1,398,098.07-391,920.93

Finding the Fourth Proportional to 931,704.12, 1,398,098.07 and 391,920.93

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Solution

The fourth proportional to 931,704.12, 1,398,098.07 and 391,920.93 is: 588,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,704.12 : 1,398,098.07 = 391,920.93 : x
  2. Step 2: Convert to fraction form
    931,704.12/1,398,098.07 = 391,920.93/x
  3. Step 3: Cross multiply
    931,704.12x = 1,398,098.07 × 391,920.93
  4. Step 4: Simplify right side
    931,704.12x = 547,943,895,825.61
  5. Step 5: Solve for x
    x = 547,943,895,825.61/931,704.12
  6. Step 6: Final answer
    x = 588,109.34

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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.