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Finding the Fourth Proportional to 526,299.72, 726,297.70 and 290,560.93

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Solution

The fourth proportional to 526,299.72, 726,297.70 and 290,560.93 is: 400,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,299.72 : 726,297.70 = 290,560.93 : x
  2. Step 2: Convert to fraction form
    526,299.72/726,297.70 = 290,560.93/x
  3. Step 3: Cross multiply
    526,299.72x = 726,297.70 × 290,560.93
  4. Step 4: Simplify right side
    526,299.72x = 211,033,735,168.86
  5. Step 5: Solve for x
    x = 211,033,735,168.86/526,299.72
  6. Step 6: Final answer
    x = 400,976.34

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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.