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Finding the Fourth Proportional to 317,443.22, 438,076.98 and 174,216.59

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Solution

The fourth proportional to 317,443.22, 438,076.98 and 174,216.59 is: 240,421.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,443.22 : 438,076.98 = 174,216.59 : x
  2. Step 2: Convert to fraction form
    317,443.22/438,076.98 = 174,216.59/x
  3. Step 3: Cross multiply
    317,443.22x = 438,076.98 × 174,216.59
  4. Step 4: Simplify right side
    317,443.22x = 76,320,277,613.10
  5. Step 5: Solve for x
    x = 76,320,277,613.10/317,443.22
  6. Step 6: Final answer
    x = 240,421.82

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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.