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Finding the Fourth Proportional to 317,435.27, 438,073.30 and 174,200.43

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Solution

The fourth proportional to 317,435.27, 438,073.30 and 174,200.43 is: 240,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,435.27 : 438,073.30 = 174,200.43 : x
  2. Step 2: Convert to fraction form
    317,435.27/438,073.30 = 174,200.43/x
  3. Step 3: Cross multiply
    317,435.27x = 438,073.30 × 174,200.43
  4. Step 4: Simplify right side
    317,435.27x = 76,312,558,112.17
  5. Step 5: Solve for x
    x = 76,312,558,112.17/317,435.27
  6. Step 6: Final answer
    x = 240,403.53

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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.