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Finding the Fourth Proportional to 325,616.74, 487,834.50 and 240,438.46

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Solution

The fourth proportional to 325,616.74, 487,834.50 and 240,438.46 is: 360,221.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,616.74 : 487,834.50 = 240,438.46 : x
  2. Step 2: Convert to fraction form
    325,616.74/487,834.50 = 240,438.46/x
  3. Step 3: Cross multiply
    325,616.74x = 487,834.50 × 240,438.46
  4. Step 4: Simplify right side
    325,616.74x = 117,294,175,914.87
  5. Step 5: Solve for x
    x = 117,294,175,914.87/325,616.74
  6. Step 6: Final answer
    x = 360,221.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.