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Finding the Fourth Proportional to 805,870.20, 1,209,364.20 and 606,610.20

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Solution

The fourth proportional to 805,870.20, 1,209,364.20 and 606,610.20 is: 910,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,870.20 : 1,209,364.20 = 606,610.20 : x
  2. Step 2: Convert to fraction form
    805,870.20/1,209,364.20 = 606,610.20/x
  3. Step 3: Cross multiply
    805,870.20x = 1,209,364.20 × 606,610.20
  4. Step 4: Simplify right side
    805,870.20x = 733,612,659,234.84
  5. Step 5: Solve for x
    x = 733,612,659,234.84/805,870.20
  6. Step 6: Final answer
    x = 910,336.01

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Double scale
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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.