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Finding the Fourth Proportional to 526,796.97, 726,981.64 and 285,079.47

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Solution

The fourth proportional to 526,796.97, 726,981.64 and 285,079.47 is: 393,410.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,796.97 : 726,981.64 = 285,079.47 : x
  2. Step 2: Convert to fraction form
    526,796.97/726,981.64 = 285,079.47/x
  3. Step 3: Cross multiply
    526,796.97x = 726,981.64 × 285,079.47
  4. Step 4: Simplify right side
    526,796.97x = 207,247,545,330.42
  5. Step 5: Solve for x
    x = 207,247,545,330.42/526,796.97
  6. Step 6: Final answer
    x = 393,410.67

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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.