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Finding the Fourth Proportional to 526,451.82, 726,503.63 and 297,057.80

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Solution

The fourth proportional to 526,451.82, 726,503.63 and 297,057.80 is: 409,939.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,451.82 : 726,503.63 = 297,057.80 : x
  2. Step 2: Convert to fraction form
    526,451.82/726,503.63 = 297,057.80/x
  3. Step 3: Cross multiply
    526,451.82x = 726,503.63 × 297,057.80
  4. Step 4: Simplify right side
    526,451.82x = 215,813,564,902.01
  5. Step 5: Solve for x
    x = 215,813,564,902.01/526,451.82
  6. Step 6: Final answer
    x = 409,939.82

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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.