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Finding the Fourth Proportional to 615,647.96, 923,614.20 and 194,923.84

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Solution

The fourth proportional to 615,647.96, 923,614.20 and 194,923.84 is: 292,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,647.96 : 923,614.20 = 194,923.84 : x
  2. Step 2: Convert to fraction form
    615,647.96/923,614.20 = 194,923.84/x
  3. Step 3: Cross multiply
    615,647.96x = 923,614.20 × 194,923.84
  4. Step 4: Simplify right side
    615,647.96x = 180,034,426,542.53
  5. Step 5: Solve for x
    x = 180,034,426,542.53/615,647.96
  6. Step 6: Final answer
    x = 292,430.80

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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.