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Finding the Fourth Proportional to 372,442.66, 514,026.20 and 219,431.94

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Solution

The fourth proportional to 372,442.66, 514,026.20 and 219,431.94 is: 302,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,442.66 : 514,026.20 = 219,431.94 : x
  2. Step 2: Convert to fraction form
    372,442.66/514,026.20 = 219,431.94/x
  3. Step 3: Cross multiply
    372,442.66x = 514,026.20 × 219,431.94
  4. Step 4: Simplify right side
    372,442.66x = 112,793,764,897.81
  5. Step 5: Solve for x
    x = 112,793,764,897.81/372,442.66
  6. Step 6: Final answer
    x = 302,848.67

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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.