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Finding the Fourth Proportional to 353,339.18, 487,563.77 and 238,866.90

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Solution

The fourth proportional to 353,339.18, 487,563.77 and 238,866.90 is: 329,606.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,339.18 : 487,563.77 = 238,866.90 : x
  2. Step 2: Convert to fraction form
    353,339.18/487,563.77 = 238,866.90/x
  3. Step 3: Cross multiply
    353,339.18x = 487,563.77 × 238,866.90
  4. Step 4: Simplify right side
    353,339.18x = 116,462,845,097.88
  5. Step 5: Solve for x
    x = 116,462,845,097.88/353,339.18
  6. Step 6: Final answer
    x = 329,606.38

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1.5x scale

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.