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Finding the Fourth Proportional to 543,630.57, 750,120.15 and 314,209.26

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Solution

The fourth proportional to 543,630.57, 750,120.15 and 314,209.26 is: 433,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,630.57 : 750,120.15 = 314,209.26 : x
  2. Step 2: Convert to fraction form
    543,630.57/750,120.15 = 314,209.26/x
  3. Step 3: Cross multiply
    543,630.57x = 750,120.15 × 314,209.26
  4. Step 4: Simplify right side
    543,630.57x = 235,694,697,242.59
  5. Step 5: Solve for x
    x = 235,694,697,242.59/543,630.57
  6. Step 6: Final answer
    x = 433,556.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.