Home / 1,609,154.75-2,220,250.71-911,441.61

Finding the Fourth Proportional to 1,609,154.75, 2,220,250.71 and 911,441.61

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Solution

The fourth proportional to 1,609,154.75, 2,220,250.71 and 911,441.61 is: 1,257,572.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,154.75 : 2,220,250.71 = 911,441.61 : x
  2. Step 2: Convert to fraction form
    1,609,154.75/2,220,250.71 = 911,441.61/x
  3. Step 3: Cross multiply
    1,609,154.75x = 2,220,250.71 × 911,441.61
  4. Step 4: Simplify right side
    1,609,154.75x = 2,023,628,881,726.04
  5. Step 5: Solve for x
    x = 2,023,628,881,726.04/1,609,154.75
  6. Step 6: Final answer
    x = 1,257,572.57

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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.