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Finding the Fourth Proportional to 526,639.66, 726,759.92 and 297,271.48

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Solution

The fourth proportional to 526,639.66, 726,759.92 and 297,271.48 is: 410,233.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,639.66 : 726,759.92 = 297,271.48 : x
  2. Step 2: Convert to fraction form
    526,639.66/726,759.92 = 297,271.48/x
  3. Step 3: Cross multiply
    526,639.66x = 726,759.92 × 297,271.48
  4. Step 4: Simplify right side
    526,639.66x = 216,044,997,023.08
  5. Step 5: Solve for x
    x = 216,044,997,023.08/526,639.66
  6. Step 6: Final answer
    x = 410,233.06

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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.