Home / 1,279,433.60-1,919,841.60-531,555.20

Finding the Fourth Proportional to 1,279,433.60, 1,919,841.60 and 531,555.20

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Solution

The fourth proportional to 1,279,433.60, 1,919,841.60 and 531,555.20 is: 797,619.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,433.60 : 1,919,841.60 = 531,555.20 : x
  2. Step 2: Convert to fraction form
    1,279,433.60/1,919,841.60 = 531,555.20/x
  3. Step 3: Cross multiply
    1,279,433.60x = 1,919,841.60 × 531,555.20
  4. Step 4: Simplify right side
    1,279,433.60x = 1,020,501,785,656.32
  5. Step 5: Solve for x
    x = 1,020,501,785,656.32/1,279,433.60
  6. Step 6: Final answer
    x = 797,619.97

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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.