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Finding the Fourth Proportional to 526,712.98, 726,958.53 and 297,340.18

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Solution

The fourth proportional to 526,712.98, 726,958.53 and 297,340.18 is: 410,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,712.98 : 726,958.53 = 297,340.18 : x
  2. Step 2: Convert to fraction form
    526,712.98/726,958.53 = 297,340.18/x
  3. Step 3: Cross multiply
    526,712.98x = 726,958.53 × 297,340.18
  4. Step 4: Simplify right side
    526,712.98x = 216,153,980,162.74
  5. Step 5: Solve for x
    x = 216,153,980,162.74/526,712.98
  6. Step 6: Final answer
    x = 410,382.86

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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.