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Finding the Fourth Proportional to 472,731.90, 708,506.55 and 236,140.62

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Solution

The fourth proportional to 472,731.90, 708,506.55 and 236,140.62 is: 353,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,731.90 : 708,506.55 = 236,140.62 : x
  2. Step 2: Convert to fraction form
    472,731.90/708,506.55 = 236,140.62/x
  3. Step 3: Cross multiply
    472,731.90x = 708,506.55 × 236,140.62
  4. Step 4: Simplify right side
    472,731.90x = 167,307,175,991.06
  5. Step 5: Solve for x
    x = 167,307,175,991.06/472,731.90
  6. Step 6: Final answer
    x = 353,915.56

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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.