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Finding the Fourth Proportional to 472,708.90, 708,472.05 and 236,117.62

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Solution

The fourth proportional to 472,708.90, 708,472.05 and 236,117.62 is: 353,881.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,708.90 : 708,472.05 = 236,117.62 : x
  2. Step 2: Convert to fraction form
    472,708.90/708,472.05 = 236,117.62/x
  3. Step 3: Cross multiply
    472,708.90x = 708,472.05 × 236,117.62
  4. Step 4: Simplify right side
    472,708.90x = 167,282,734,282.52
  5. Step 5: Solve for x
    x = 167,282,734,282.52/472,708.90
  6. Step 6: Final answer
    x = 353,881.08

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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.