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Finding the Fourth Proportional to 317,575.89, 438,256.58 and 174,337.11

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Solution

The fourth proportional to 317,575.89, 438,256.58 and 174,337.11 is: 240,586.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,575.89 : 438,256.58 = 174,337.11 : x
  2. Step 2: Convert to fraction form
    317,575.89/438,256.58 = 174,337.11/x
  3. Step 3: Cross multiply
    317,575.89x = 438,256.58 × 174,337.11
  4. Step 4: Simplify right side
    317,575.89x = 76,404,384,724.00
  5. Step 5: Solve for x
    x = 76,404,384,724.00/317,575.89
  6. Step 6: Final answer
    x = 240,586.23

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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.