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Finding the Fourth Proportional to 372,456.41, 514,045.22 and 219,445.70

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Solution

The fourth proportional to 372,456.41, 514,045.22 and 219,445.70 is: 302,867.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,456.41 : 514,045.22 = 219,445.70 : x
  2. Step 2: Convert to fraction form
    372,456.41/514,045.22 = 219,445.70/x
  3. Step 3: Cross multiply
    372,456.41x = 514,045.22 × 219,445.70
  4. Step 4: Simplify right side
    372,456.41x = 112,805,009,467.10
  5. Step 5: Solve for x
    x = 112,805,009,467.10/372,456.41
  6. Step 6: Final answer
    x = 302,867.69

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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.