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Finding the Fourth Proportional to 288,618.96, 398,036.31 and 181,199.01

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Solution

The fourth proportional to 288,618.96, 398,036.31 and 181,199.01 is: 249,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,618.96 : 398,036.31 = 181,199.01 : x
  2. Step 2: Convert to fraction form
    288,618.96/398,036.31 = 181,199.01/x
  3. Step 3: Cross multiply
    288,618.96x = 398,036.31 × 181,199.01
  4. Step 4: Simplify right side
    288,618.96x = 72,123,785,316.05
  5. Step 5: Solve for x
    x = 72,123,785,316.05/288,618.96
  6. Step 6: Final answer
    x = 249,892.75

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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.