Home / 659,794.31-985,597.68-478,440.07

Finding the Fourth Proportional to 659,794.31, 985,597.68 and 478,440.07

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Solution

The fourth proportional to 659,794.31, 985,597.68 and 478,440.07 is: 714,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,794.31 : 985,597.68 = 478,440.07 : x
  2. Step 2: Convert to fraction form
    659,794.31/985,597.68 = 478,440.07/x
  3. Step 3: Cross multiply
    659,794.31x = 985,597.68 × 478,440.07
  4. Step 4: Simplify right side
    659,794.31x = 471,549,423,011.04
  5. Step 5: Solve for x
    x = 471,549,423,011.04/659,794.31
  6. Step 6: Final answer
    x = 714,691.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.