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Finding the Fourth Proportional to 516,552.28, 712,807.56 and 287,094.67

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Solution

The fourth proportional to 516,552.28, 712,807.56 and 287,094.67 is: 396,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,552.28 : 712,807.56 = 287,094.67 : x
  2. Step 2: Convert to fraction form
    516,552.28/712,807.56 = 287,094.67/x
  3. Step 3: Cross multiply
    516,552.28x = 712,807.56 × 287,094.67
  4. Step 4: Simplify right side
    516,552.28x = 204,643,251,211.71
  5. Step 5: Solve for x
    x = 204,643,251,211.71/516,552.28
  6. Step 6: Final answer
    x = 396,171.42

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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.