Home / 714,229.10-985,633.23-391,944.57

Finding the Fourth Proportional to 714,229.10, 985,633.23 and 391,944.57

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Solution

The fourth proportional to 714,229.10, 985,633.23 and 391,944.57 is: 540,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,229.10 : 985,633.23 = 391,944.57 : x
  2. Step 2: Convert to fraction form
    714,229.10/985,633.23 = 391,944.57/x
  3. Step 3: Cross multiply
    714,229.10x = 985,633.23 × 391,944.57
  4. Step 4: Simplify right side
    714,229.10x = 386,313,592,510.06
  5. Step 5: Solve for x
    x = 386,313,592,510.06/714,229.10
  6. Step 6: Final answer
    x = 540,881.90

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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.