Home / 516,380.62-712,591.07-286,931.97

Finding the Fourth Proportional to 516,380.62, 712,591.07 and 286,931.97

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Solution

The fourth proportional to 516,380.62, 712,591.07 and 286,931.97 is: 395,958.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,380.62 : 712,591.07 = 286,931.97 : x
  2. Step 2: Convert to fraction form
    516,380.62/712,591.07 = 286,931.97/x
  3. Step 3: Cross multiply
    516,380.62x = 712,591.07 × 286,931.97
  4. Step 4: Simplify right side
    516,380.62x = 204,465,159,698.84
  5. Step 5: Solve for x
    x = 204,465,159,698.84/516,380.62
  6. Step 6: Final answer
    x = 395,958.24

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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.