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Finding the Fourth Proportional to 317,805.75, 438,571.98 and 174,568.23

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Solution

The fourth proportional to 317,805.75, 438,571.98 and 174,568.23 is: 240,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,805.75 : 438,571.98 = 174,568.23 : x
  2. Step 2: Convert to fraction form
    317,805.75/438,571.98 = 174,568.23/x
  3. Step 3: Cross multiply
    317,805.75x = 438,571.98 × 174,568.23
  4. Step 4: Simplify right side
    317,805.75x = 76,560,734,276.20
  5. Step 5: Solve for x
    x = 76,560,734,276.20/317,805.75
  6. Step 6: Final answer
    x = 240,904.18

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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.