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Finding the Fourth Proportional to 313,329.75, 432,397.59 and 173,630.68

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Solution

The fourth proportional to 313,329.75, 432,397.59 and 173,630.68 is: 239,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,329.75 : 432,397.59 = 173,630.68 : x
  2. Step 2: Convert to fraction form
    313,329.75/432,397.59 = 173,630.68/x
  3. Step 3: Cross multiply
    313,329.75x = 432,397.59 × 173,630.68
  4. Step 4: Simplify right side
    313,329.75x = 75,077,484,986.00
  5. Step 5: Solve for x
    x = 75,077,484,986.00/313,329.75
  6. Step 6: Final answer
    x = 239,611.74

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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.