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Finding the Fourth Proportional to 566,478.95, 781,750.92 and 308,363.32

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Solution

The fourth proportional to 566,478.95, 781,750.92 and 308,363.32 is: 425,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,478.95 : 781,750.92 = 308,363.32 : x
  2. Step 2: Convert to fraction form
    566,478.95/781,750.92 = 308,363.32/x
  3. Step 3: Cross multiply
    566,478.95x = 781,750.92 × 308,363.32
  4. Step 4: Simplify right side
    566,478.95x = 241,063,309,104.25
  5. Step 5: Solve for x
    x = 241,063,309,104.25/566,478.95
  6. Step 6: Final answer
    x = 425,546.81

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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.