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Finding the Fourth Proportional to 472,707.40, 708,469.80 and 236,116.12

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Solution

The fourth proportional to 472,707.40, 708,469.80 and 236,116.12 is: 353,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,707.40 : 708,469.80 = 236,116.12 : x
  2. Step 2: Convert to fraction form
    472,707.40/708,469.80 = 236,116.12/x
  3. Step 3: Cross multiply
    472,707.40x = 708,469.80 × 236,116.12
  4. Step 4: Simplify right side
    472,707.40x = 167,281,140,313.18
  5. Step 5: Solve for x
    x = 167,281,140,313.18/472,707.40
  6. Step 6: Final answer
    x = 353,878.83

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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.