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Finding the Fourth Proportional to 537,805.55, 742,143.48 and 296,040.90

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Solution

The fourth proportional to 537,805.55, 742,143.48 and 296,040.90 is: 408,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,805.55 : 742,143.48 = 296,040.90 : x
  2. Step 2: Convert to fraction form
    537,805.55/742,143.48 = 296,040.90/x
  3. Step 3: Cross multiply
    537,805.55x = 742,143.48 × 296,040.90
  4. Step 4: Simplify right side
    537,805.55x = 219,704,823,748.33
  5. Step 5: Solve for x
    x = 219,704,823,748.33/537,805.55
  6. Step 6: Final answer
    x = 408,520.93

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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.