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Finding the Fourth Proportional to 618,666.60, 928,005.38 and 244,689.64

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Solution

The fourth proportional to 618,666.60, 928,005.38 and 244,689.64 is: 367,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,666.60 : 928,005.38 = 244,689.64 : x
  2. Step 2: Convert to fraction form
    618,666.60/928,005.38 = 244,689.64/x
  3. Step 3: Cross multiply
    618,666.60x = 928,005.38 × 244,689.64
  4. Step 4: Simplify right side
    618,666.60x = 227,073,302,350.26
  5. Step 5: Solve for x
    x = 227,073,302,350.26/618,666.60
  6. Step 6: Final answer
    x = 367,036.63

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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.