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Finding the Fourth Proportional to 442,538.88, 611,017.92 and 272,826.24

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Solution

The fourth proportional to 442,538.88, 611,017.92 and 272,826.24 is: 376,693.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,538.88 : 611,017.92 = 272,826.24 : x
  2. Step 2: Convert to fraction form
    442,538.88/611,017.92 = 272,826.24/x
  3. Step 3: Cross multiply
    442,538.88x = 611,017.92 × 272,826.24
  4. Step 4: Simplify right side
    442,538.88x = 166,701,721,686.22
  5. Step 5: Solve for x
    x = 166,701,721,686.22/442,538.88
  6. Step 6: Final answer
    x = 376,693.96

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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.