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Finding the Fourth Proportional to 472,708.28, 708,471.11 and 236,117

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Solution

The fourth proportional to 472,708.28, 708,471.11 and 236,117 is: 353,880.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,708.28 : 708,471.11 = 236,117 : x
  2. Step 2: Convert to fraction form
    472,708.28/708,471.11 = 236,117/x
  3. Step 3: Cross multiply
    472,708.28x = 708,471.11 × 236,117
  4. Step 4: Simplify right side
    472,708.28x = 167,282,073,079.87
  5. Step 5: Solve for x
    x = 167,282,073,079.87/472,708.28
  6. Step 6: Final answer
    x = 353,880.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.