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Finding the Fourth Proportional to 575,979.43, 864,354.81 and 239,020.42

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Solution

The fourth proportional to 575,979.43, 864,354.81 and 239,020.42 is: 358,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,979.43 : 864,354.81 = 239,020.42 : x
  2. Step 2: Convert to fraction form
    575,979.43/864,354.81 = 239,020.42/x
  3. Step 3: Cross multiply
    575,979.43x = 864,354.81 × 239,020.42
  4. Step 4: Simplify right side
    575,979.43x = 206,598,449,715.22
  5. Step 5: Solve for x
    x = 206,598,449,715.22/575,979.43
  6. Step 6: Final answer
    x = 358,690.67

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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.