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Finding the Fourth Proportional to 566,386.92, 781,597.62 and 311,732.64

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Solution

The fourth proportional to 566,386.92, 781,597.62 and 311,732.64 is: 430,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,386.92 : 781,597.62 = 311,732.64 : x
  2. Step 2: Convert to fraction form
    566,386.92/781,597.62 = 311,732.64/x
  3. Step 3: Cross multiply
    566,386.92x = 781,597.62 × 311,732.64
  4. Step 4: Simplify right side
    566,386.92x = 243,649,489,500.32
  5. Step 5: Solve for x
    x = 243,649,489,500.32/566,386.92
  6. Step 6: Final answer
    x = 430,182.06

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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.