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Finding the Fourth Proportional to 348,532.61, 480,590.78 and 240,915.80

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Solution

The fourth proportional to 348,532.61, 480,590.78 and 240,915.80 is: 332,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,532.61 : 480,590.78 = 240,915.80 : x
  2. Step 2: Convert to fraction form
    348,532.61/480,590.78 = 240,915.80/x
  3. Step 3: Cross multiply
    348,532.61x = 480,590.78 × 240,915.80
  4. Step 4: Simplify right side
    348,532.61x = 115,781,912,233.22
  5. Step 5: Solve for x
    x = 115,781,912,233.22/348,532.61
  6. Step 6: Final answer
    x = 332,198.22

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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.