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Finding the Fourth Proportional to 472,879.72, 707,655.30 and 295,470.28

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Solution

The fourth proportional to 472,879.72, 707,655.30 and 295,470.28 is: 442,165.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,879.72 : 707,655.30 = 295,470.28 : x
  2. Step 2: Convert to fraction form
    472,879.72/707,655.30 = 295,470.28/x
  3. Step 3: Cross multiply
    472,879.72x = 707,655.30 × 295,470.28
  4. Step 4: Simplify right side
    472,879.72x = 209,091,109,634.48
  5. Step 5: Solve for x
    x = 209,091,109,634.48/472,879.72
  6. Step 6: Final answer
    x = 442,165.52

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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.