Home / 1,121,010.60-1,681,515.90-279,562.35

Finding the Fourth Proportional to 1,121,010.60, 1,681,515.90 and 279,562.35

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Solution

The fourth proportional to 1,121,010.60, 1,681,515.90 and 279,562.35 is: 419,343.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,010.60 : 1,681,515.90 = 279,562.35 : x
  2. Step 2: Convert to fraction form
    1,121,010.60/1,681,515.90 = 279,562.35/x
  3. Step 3: Cross multiply
    1,121,010.60x = 1,681,515.90 × 279,562.35
  4. Step 4: Simplify right side
    1,121,010.60x = 470,088,536,566.37
  5. Step 5: Solve for x
    x = 470,088,536,566.37/1,121,010.60
  6. Step 6: Final answer
    x = 419,343.53

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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.