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Finding the Fourth Proportional to 615,622.10, 923,433.15 and 194,930.90

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Solution

The fourth proportional to 615,622.10, 923,433.15 and 194,930.90 is: 292,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,622.10 : 923,433.15 = 194,930.90 : x
  2. Step 2: Convert to fraction form
    615,622.10/923,433.15 = 194,930.90/x
  3. Step 3: Cross multiply
    615,622.10x = 923,433.15 × 194,930.90
  4. Step 4: Simplify right side
    615,622.10x = 180,005,655,019.34
  5. Step 5: Solve for x
    x = 180,005,655,019.34/615,622.10
  6. Step 6: Final answer
    x = 292,396.35

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Similar ratio
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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.