Home / 858,908.70-1,288,363.05-606,966.30

Finding the Fourth Proportional to 858,908.70, 1,288,363.05 and 606,966.30

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Solution

The fourth proportional to 858,908.70, 1,288,363.05 and 606,966.30 is: 910,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,908.70 : 1,288,363.05 = 606,966.30 : x
  2. Step 2: Convert to fraction form
    858,908.70/1,288,363.05 = 606,966.30/x
  3. Step 3: Cross multiply
    858,908.70x = 1,288,363.05 × 606,966.30
  4. Step 4: Simplify right side
    858,908.70x = 781,992,953,515.22
  5. Step 5: Solve for x
    x = 781,992,953,515.22/858,908.70
  6. Step 6: Final answer
    x = 910,449.45

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Double scale
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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.