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Finding the Fourth Proportional to 574,121.76, 792,216.72 and 319,454.88

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Solution

The fourth proportional to 574,121.76, 792,216.72 and 319,454.88 is: 440,808.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,121.76 : 792,216.72 = 319,454.88 : x
  2. Step 2: Convert to fraction form
    574,121.76/792,216.72 = 319,454.88/x
  3. Step 3: Cross multiply
    574,121.76x = 792,216.72 × 319,454.88
  4. Step 4: Simplify right side
    574,121.76x = 253,077,497,221.59
  5. Step 5: Solve for x
    x = 253,077,497,221.59/574,121.76
  6. Step 6: Final answer
    x = 440,808.06

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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.