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Finding the Fourth Proportional to 317,322.72, 437,911.20 and 174,074.04

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Solution

The fourth proportional to 317,322.72, 437,911.20 and 174,074.04 is: 240,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,322.72 : 437,911.20 = 174,074.04 : x
  2. Step 2: Convert to fraction form
    317,322.72/437,911.20 = 174,074.04/x
  3. Step 3: Cross multiply
    317,322.72x = 437,911.20 × 174,074.04
  4. Step 4: Simplify right side
    317,322.72x = 76,228,971,745.25
  5. Step 5: Solve for x
    x = 76,228,971,745.25/317,322.72
  6. Step 6: Final answer
    x = 240,225.38

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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.