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Finding the Fourth Proportional to 317,522.76, 438,187.05 and 174,296.13

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Solution

The fourth proportional to 317,522.76, 438,187.05 and 174,296.13 is: 240,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,522.76 : 438,187.05 = 174,296.13 : x
  2. Step 2: Convert to fraction form
    317,522.76/438,187.05 = 174,296.13/x
  3. Step 3: Cross multiply
    317,522.76x = 438,187.05 × 174,296.13
  4. Step 4: Simplify right side
    317,522.76x = 76,374,307,031.12
  5. Step 5: Solve for x
    x = 76,374,307,031.12/317,522.76
  6. Step 6: Final answer
    x = 240,531.76

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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.