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Finding the Fourth Proportional to 615,510.30, 923,351.85 and 194,742.30

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Solution

The fourth proportional to 615,510.30, 923,351.85 and 194,742.30 is: 292,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,510.30 : 923,351.85 = 194,742.30 : x
  2. Step 2: Convert to fraction form
    615,510.30/923,351.85 = 194,742.30/x
  3. Step 3: Cross multiply
    615,510.30x = 923,351.85 × 194,742.30
  4. Step 4: Simplify right side
    615,510.30x = 179,815,662,978.26
  5. Step 5: Solve for x
    x = 179,815,662,978.26/615,510.30
  6. Step 6: Final answer
    x = 292,140.79

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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.