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Finding the Fourth Proportional to 553,600.20, 830,400.30 and 548,934.60

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Solution

The fourth proportional to 553,600.20, 830,400.30 and 548,934.60 is: 823,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,600.20 : 830,400.30 = 548,934.60 : x
  2. Step 2: Convert to fraction form
    553,600.20/830,400.30 = 548,934.60/x
  3. Step 3: Cross multiply
    553,600.20x = 830,400.30 × 548,934.60
  4. Step 4: Simplify right side
    553,600.20x = 455,835,456,520.38
  5. Step 5: Solve for x
    x = 455,835,456,520.38/553,600.20
  6. Step 6: Final answer
    x = 823,401.90

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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.