Home / 1,059,616.60-1,589,424.90-428,205.40

Finding the Fourth Proportional to 1,059,616.60, 1,589,424.90 and 428,205.40

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Solution

The fourth proportional to 1,059,616.60, 1,589,424.90 and 428,205.40 is: 642,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,616.60 : 1,589,424.90 = 428,205.40 : x
  2. Step 2: Convert to fraction form
    1,059,616.60/1,589,424.90 = 428,205.40/x
  3. Step 3: Cross multiply
    1,059,616.60x = 1,589,424.90 × 428,205.40
  4. Step 4: Simplify right side
    1,059,616.60x = 680,600,325,074.46
  5. Step 5: Solve for x
    x = 680,600,325,074.46/1,059,616.60
  6. Step 6: Final answer
    x = 642,308.10

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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.