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Finding the Fourth Proportional to 619,305.38, 928,959.52 and 170,032.40

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Solution

The fourth proportional to 619,305.38, 928,959.52 and 170,032.40 is: 255,049.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,305.38 : 928,959.52 = 170,032.40 : x
  2. Step 2: Convert to fraction form
    619,305.38/928,959.52 = 170,032.40/x
  3. Step 3: Cross multiply
    619,305.38x = 928,959.52 × 170,032.40
  4. Step 4: Simplify right side
    619,305.38x = 157,953,216,688.45
  5. Step 5: Solve for x
    x = 157,953,216,688.45/619,305.38
  6. Step 6: Final answer
    x = 255,049.00

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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.