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Finding the Fourth Proportional to 317,589.39, 438,253.65 and 174,348.54

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Solution

The fourth proportional to 317,589.39, 438,253.65 and 174,348.54 is: 240,590.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,589.39 : 438,253.65 = 174,348.54 : x
  2. Step 2: Convert to fraction form
    317,589.39/438,253.65 = 174,348.54/x
  3. Step 3: Cross multiply
    317,589.39x = 438,253.65 × 174,348.54
  4. Step 4: Simplify right side
    317,589.39x = 76,408,884,027.17
  5. Step 5: Solve for x
    x = 76,408,884,027.17/317,589.39
  6. Step 6: Final answer
    x = 240,590.17

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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.