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Finding the Fourth Proportional to 382,630.80, 573,946.20 and 98,320.80

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Solution

The fourth proportional to 382,630.80, 573,946.20 and 98,320.80 is: 147,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,630.80 : 573,946.20 = 98,320.80 : x
  2. Step 2: Convert to fraction form
    382,630.80/573,946.20 = 98,320.80/x
  3. Step 3: Cross multiply
    382,630.80x = 573,946.20 × 98,320.80
  4. Step 4: Simplify right side
    382,630.80x = 56,430,849,540.96
  5. Step 5: Solve for x
    x = 56,430,849,540.96/382,630.80
  6. Step 6: Final answer
    x = 147,481.20

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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.