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Finding the Fourth Proportional to 472,419.79, 708,923.57 and 191,937.04

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Solution

The fourth proportional to 472,419.79, 708,923.57 and 191,937.04 is: 288,024.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,419.79 : 708,923.57 = 191,937.04 : x
  2. Step 2: Convert to fraction form
    472,419.79/708,923.57 = 191,937.04/x
  3. Step 3: Cross multiply
    472,419.79x = 708,923.57 × 191,937.04
  4. Step 4: Simplify right side
    472,419.79x = 136,068,693,407.56
  5. Step 5: Solve for x
    x = 136,068,693,407.56/472,419.79
  6. Step 6: Final answer
    x = 288,024.96

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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.