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Finding the Fourth Proportional to 548,536.80, 822,805.20 and 337,490.40

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Solution

The fourth proportional to 548,536.80, 822,805.20 and 337,490.40 is: 506,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,536.80 : 822,805.20 = 337,490.40 : x
  2. Step 2: Convert to fraction form
    548,536.80/822,805.20 = 337,490.40/x
  3. Step 3: Cross multiply
    548,536.80x = 822,805.20 × 337,490.40
  4. Step 4: Simplify right side
    548,536.80x = 277,688,856,070.08
  5. Step 5: Solve for x
    x = 277,688,856,070.08/548,536.80
  6. Step 6: Final answer
    x = 506,235.60

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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.