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Finding the Fourth Proportional to 806,469.60, 1,112,855.76 and 466,960.80

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Solution

The fourth proportional to 806,469.60, 1,112,855.76 and 466,960.80 is: 644,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,469.60 : 1,112,855.76 = 466,960.80 : x
  2. Step 2: Convert to fraction form
    806,469.60/1,112,855.76 = 466,960.80/x
  3. Step 3: Cross multiply
    806,469.60x = 1,112,855.76 × 466,960.80
  4. Step 4: Simplify right side
    806,469.60x = 519,660,015,974.21
  5. Step 5: Solve for x
    x = 519,660,015,974.21/806,469.60
  6. Step 6: Final answer
    x = 644,364.05

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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.