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Finding the Fourth Proportional to 372,992.58, 514,730.90 and 211,848.95

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Solution

The fourth proportional to 372,992.58, 514,730.90 and 211,848.95 is: 292,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,992.58 : 514,730.90 = 211,848.95 : x
  2. Step 2: Convert to fraction form
    372,992.58/514,730.90 = 211,848.95/x
  3. Step 3: Cross multiply
    372,992.58x = 514,730.90 × 211,848.95
  4. Step 4: Simplify right side
    372,992.58x = 109,045,202,514.01
  5. Step 5: Solve for x
    x = 109,045,202,514.01/372,992.58
  6. Step 6: Final answer
    x = 292,352.20

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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.