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Finding the Fourth Proportional to 526,760.63, 726,931.59 and 285,043.20

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Solution

The fourth proportional to 526,760.63, 726,931.59 and 285,043.20 is: 393,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,760.63 : 726,931.59 = 285,043.20 : x
  2. Step 2: Convert to fraction form
    526,760.63/726,931.59 = 285,043.20/x
  3. Step 3: Cross multiply
    526,760.63x = 726,931.59 × 285,043.20
  4. Step 4: Simplify right side
    526,760.63x = 207,206,906,594.69
  5. Step 5: Solve for x
    x = 207,206,906,594.69/526,760.63
  6. Step 6: Final answer
    x = 393,360.66

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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.