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Finding the Fourth Proportional to 615,614.60, 923,421.90 and 194,923.40

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Solution

The fourth proportional to 615,614.60, 923,421.90 and 194,923.40 is: 292,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,614.60 : 923,421.90 = 194,923.40 : x
  2. Step 2: Convert to fraction form
    615,614.60/923,421.90 = 194,923.40/x
  3. Step 3: Cross multiply
    615,614.60x = 923,421.90 × 194,923.40
  4. Step 4: Simplify right side
    615,614.60x = 179,996,536,382.46
  5. Step 5: Solve for x
    x = 179,996,536,382.46/615,614.60
  6. Step 6: Final answer
    x = 292,385.10

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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.