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Finding the Fourth Proportional to 317,646.52, 438,352.97 and 174,415.77

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Solution

The fourth proportional to 317,646.52, 438,352.97 and 174,415.77 is: 240,694.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,646.52 : 438,352.97 = 174,415.77 : x
  2. Step 2: Convert to fraction form
    317,646.52/438,352.97 = 174,415.77/x
  3. Step 3: Cross multiply
    317,646.52x = 438,352.97 × 174,415.77
  4. Step 4: Simplify right side
    317,646.52x = 76,455,669,922.26
  5. Step 5: Solve for x
    x = 76,455,669,922.26/317,646.52
  6. Step 6: Final answer
    x = 240,694.19

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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.