Home / 1,151,559.39-1,589,154.09-642,294.57

Finding the Fourth Proportional to 1,151,559.39, 1,589,154.09 and 642,294.57

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Solution

The fourth proportional to 1,151,559.39, 1,589,154.09 and 642,294.57 is: 886,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,559.39 : 1,589,154.09 = 642,294.57 : x
  2. Step 2: Convert to fraction form
    1,151,559.39/1,589,154.09 = 642,294.57/x
  3. Step 3: Cross multiply
    1,151,559.39x = 1,589,154.09 × 642,294.57
  4. Step 4: Simplify right side
    1,151,559.39x = 1,020,705,042,900.29
  5. Step 5: Solve for x
    x = 1,020,705,042,900.29/1,151,559.39
  6. Step 6: Final answer
    x = 886,367.70

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.