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Finding the Fourth Proportional to 526,477.12, 726,538.48 and 284,759.71

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Solution

The fourth proportional to 526,477.12, 726,538.48 and 284,759.71 is: 392,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,477.12 : 726,538.48 = 284,759.71 : x
  2. Step 2: Convert to fraction form
    526,477.12/726,538.48 = 284,759.71/x
  3. Step 3: Cross multiply
    526,477.12x = 726,538.48 × 284,759.71
  4. Step 4: Simplify right side
    526,477.12x = 206,888,884,340.40
  5. Step 5: Solve for x
    x = 206,888,884,340.40/526,477.12
  6. Step 6: Final answer
    x = 392,968.43

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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.