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Finding the Fourth Proportional to 526,509.95, 726,521.15 and 297,053.82

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Solution

The fourth proportional to 526,509.95, 726,521.15 and 297,053.82 is: 409,898.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,509.95 : 726,521.15 = 297,053.82 : x
  2. Step 2: Convert to fraction form
    526,509.95/726,521.15 = 297,053.82/x
  3. Step 3: Cross multiply
    526,509.95x = 726,521.15 × 297,053.82
  4. Step 4: Simplify right side
    526,509.95x = 215,815,883,660.93
  5. Step 5: Solve for x
    x = 215,815,883,660.93/526,509.95
  6. Step 6: Final answer
    x = 409,898.97

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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.