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Finding the Fourth Proportional to 632,029.38, 872,200.56 and 345,549.48

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Solution

The fourth proportional to 632,029.38, 872,200.56 and 345,549.48 is: 476,858.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,029.38 : 872,200.56 = 345,549.48 : x
  2. Step 2: Convert to fraction form
    632,029.38/872,200.56 = 345,549.48/x
  3. Step 3: Cross multiply
    632,029.38x = 872,200.56 × 345,549.48
  4. Step 4: Simplify right side
    632,029.38x = 301,388,449,963.71
  5. Step 5: Solve for x
    x = 301,388,449,963.71/632,029.38
  6. Step 6: Final answer
    x = 476,858.29

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1.5x scale

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.