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Finding the Fourth Proportional to 472,086.20, 708,338.58 and 247,393.22

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Solution

The fourth proportional to 472,086.20, 708,338.58 and 247,393.22 is: 371,199.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,086.20 : 708,338.58 = 247,393.22 : x
  2. Step 2: Convert to fraction form
    472,086.20/708,338.58 = 247,393.22/x
  3. Step 3: Cross multiply
    472,086.20x = 708,338.58 × 247,393.22
  4. Step 4: Simplify right side
    472,086.20x = 175,238,162,156.43
  5. Step 5: Solve for x
    x = 175,238,162,156.43/472,086.20
  6. Step 6: Final answer
    x = 371,199.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.