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Finding the Fourth Proportional to 458,716.80, 632,918.40 and 267,621.12

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Solution

The fourth proportional to 458,716.80, 632,918.40 and 267,621.12 is: 369,252.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,716.80 : 632,918.40 = 267,621.12 : x
  2. Step 2: Convert to fraction form
    458,716.80/632,918.40 = 267,621.12/x
  3. Step 3: Cross multiply
    458,716.80x = 632,918.40 × 267,621.12
  4. Step 4: Simplify right side
    458,716.80x = 169,382,331,076.61
  5. Step 5: Solve for x
    x = 169,382,331,076.61/458,716.80
  6. Step 6: Final answer
    x = 369,252.51

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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.