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Finding the Fourth Proportional to 633,246.75, 873,879.18 and 342,856.89

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Solution

The fourth proportional to 633,246.75, 873,879.18 and 342,856.89 is: 473,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,246.75 : 873,879.18 = 342,856.89 : x
  2. Step 2: Convert to fraction form
    633,246.75/873,879.18 = 342,856.89/x
  3. Step 3: Cross multiply
    633,246.75x = 873,879.18 × 342,856.89
  4. Step 4: Simplify right side
    633,246.75x = 299,615,500,932.39
  5. Step 5: Solve for x
    x = 299,615,500,932.39/633,246.75
  6. Step 6: Final answer
    x = 473,141.79

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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.