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Finding the Fourth Proportional to 526,406.92, 726,448.63 and 296,963.50

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Solution

The fourth proportional to 526,406.92, 726,448.63 and 296,963.50 is: 409,813.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,406.92 : 726,448.63 = 296,963.50 : x
  2. Step 2: Convert to fraction form
    526,406.92/726,448.63 = 296,963.50/x
  3. Step 3: Cross multiply
    526,406.92x = 726,448.63 × 296,963.50
  4. Step 4: Simplify right side
    526,406.92x = 215,728,727,735.01
  5. Step 5: Solve for x
    x = 215,728,727,735.01/526,406.92
  6. Step 6: Final answer
    x = 409,813.62

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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.