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Finding the Fourth Proportional to 531,353.34, 797,040.95 and 215,594.28

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Solution

The fourth proportional to 531,353.34, 797,040.95 and 215,594.28 is: 323,395.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,353.34 : 797,040.95 = 215,594.28 : x
  2. Step 2: Convert to fraction form
    531,353.34/797,040.95 = 215,594.28/x
  3. Step 3: Cross multiply
    531,353.34x = 797,040.95 × 215,594.28
  4. Step 4: Simplify right side
    531,353.34x = 171,837,468,667.80
  5. Step 5: Solve for x
    x = 171,837,468,667.80/531,353.34
  6. Step 6: Final answer
    x = 323,395.86

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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.