Home / 714,193.47-985,584.27-391,908.96

Finding the Fourth Proportional to 714,193.47, 985,584.27 and 391,908.96

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Solution

The fourth proportional to 714,193.47, 985,584.27 and 391,908.96 is: 540,832.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,193.47 : 985,584.27 = 391,908.96 : x
  2. Step 2: Convert to fraction form
    714,193.47/985,584.27 = 391,908.96/x
  3. Step 3: Cross multiply
    714,193.47x = 985,584.27 × 391,908.96
  4. Step 4: Simplify right side
    714,193.47x = 386,259,306,248.06
  5. Step 5: Solve for x
    x = 386,259,306,248.06/714,193.47
  6. Step 6: Final answer
    x = 540,832.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.