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Finding the Fourth Proportional to 317,838.96, 438,596.10 and 174,605.04

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Solution

The fourth proportional to 317,838.96, 438,596.10 and 174,605.04 is: 240,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,838.96 : 438,596.10 = 174,605.04 : x
  2. Step 2: Convert to fraction form
    317,838.96/438,596.10 = 174,605.04/x
  3. Step 3: Cross multiply
    317,838.96x = 438,596.10 × 174,605.04
  4. Step 4: Simplify right side
    317,838.96x = 76,581,089,584.34
  5. Step 5: Solve for x
    x = 76,581,089,584.34/317,838.96
  6. Step 6: Final answer
    x = 240,943.05

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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.