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Finding the Fourth Proportional to 548,658.80, 822,988.20 and 337,612.40

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Solution

The fourth proportional to 548,658.80, 822,988.20 and 337,612.40 is: 506,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,658.80 : 822,988.20 = 337,612.40 : x
  2. Step 2: Convert to fraction form
    548,658.80/822,988.20 = 337,612.40/x
  3. Step 3: Cross multiply
    548,658.80x = 822,988.20 × 337,612.40
  4. Step 4: Simplify right side
    548,658.80x = 277,851,021,373.68
  5. Step 5: Solve for x
    x = 277,851,021,373.68/548,658.80
  6. Step 6: Final answer
    x = 506,418.60

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Similar ratio
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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.