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Finding the Fourth Proportional to 526,686.80, 726,830.27 and 297,253.76

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Solution

The fourth proportional to 526,686.80, 726,830.27 and 297,253.76 is: 410,211.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,686.80 : 726,830.27 = 297,253.76 : x
  2. Step 2: Convert to fraction form
    526,686.80/726,830.27 = 297,253.76/x
  3. Step 3: Cross multiply
    526,686.80x = 726,830.27 × 297,253.76
  4. Step 4: Simplify right side
    526,686.80x = 216,053,025,518.90
  5. Step 5: Solve for x
    x = 216,053,025,518.90/526,686.80
  6. Step 6: Final answer
    x = 410,211.59

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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.