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Finding the Fourth Proportional to 527,973.56, 728,617.85 and 298,565.18

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Solution

The fourth proportional to 527,973.56, 728,617.85 and 298,565.18 is: 412,028.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,973.56 : 728,617.85 = 298,565.18 : x
  2. Step 2: Convert to fraction form
    527,973.56/728,617.85 = 298,565.18/x
  3. Step 3: Cross multiply
    527,973.56x = 728,617.85 × 298,565.18
  4. Step 4: Simplify right side
    527,973.56x = 217,539,919,536.46
  5. Step 5: Solve for x
    x = 217,539,919,536.46/527,973.56
  6. Step 6: Final answer
    x = 412,028.06

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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.