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Finding the Fourth Proportional to 566,308.31, 781,329.48 and 321,252.74

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Solution

The fourth proportional to 566,308.31, 781,329.48 and 321,252.74 is: 443,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,308.31 : 781,329.48 = 321,252.74 : x
  2. Step 2: Convert to fraction form
    566,308.31/781,329.48 = 321,252.74/x
  3. Step 3: Cross multiply
    566,308.31x = 781,329.48 × 321,252.74
  4. Step 4: Simplify right side
    566,308.31x = 251,004,232,386.13
  5. Step 5: Solve for x
    x = 251,004,232,386.13/566,308.31
  6. Step 6: Final answer
    x = 443,228.94

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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.