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Finding the Fourth Proportional to 312,288.01, 430,925.49 and 181,445.27

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Solution

The fourth proportional to 312,288.01, 430,925.49 and 181,445.27 is: 250,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,288.01 : 430,925.49 = 181,445.27 : x
  2. Step 2: Convert to fraction form
    312,288.01/430,925.49 = 181,445.27/x
  3. Step 3: Cross multiply
    312,288.01x = 430,925.49 × 181,445.27
  4. Step 4: Simplify right side
    312,288.01x = 78,189,389,728.30
  5. Step 5: Solve for x
    x = 78,189,389,728.30/312,288.01
  6. Step 6: Final answer
    x = 250,375.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.