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Finding the Fourth Proportional to 417,311.92, 575,837.64 and 247,512.88

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Solution

The fourth proportional to 417,311.92, 575,837.64 and 247,512.88 is: 341,536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,311.92 : 575,837.64 = 247,512.88 : x
  2. Step 2: Convert to fraction form
    417,311.92/575,837.64 = 247,512.88/x
  3. Step 3: Cross multiply
    417,311.92x = 575,837.64 × 247,512.88
  4. Step 4: Simplify right side
    417,311.92x = 142,527,232,688.80
  5. Step 5: Solve for x
    x = 142,527,232,688.80/417,311.92
  6. Step 6: Final answer
    x = 341,536.45

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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.