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Finding the Fourth Proportional to 615,445.80, 923,298.30 and 194,764.20

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Solution

The fourth proportional to 615,445.80, 923,298.30 and 194,764.20 is: 292,187.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,445.80 : 923,298.30 = 194,764.20 : x
  2. Step 2: Convert to fraction form
    615,445.80/923,298.30 = 194,764.20/x
  3. Step 3: Cross multiply
    615,445.80x = 923,298.30 × 194,764.20
  4. Step 4: Simplify right side
    615,445.80x = 179,825,454,760.86
  5. Step 5: Solve for x
    x = 179,825,454,760.86/615,445.80
  6. Step 6: Final answer
    x = 292,187.31

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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.