Home / 878,412.70-1,317,619.05-436,044.70

Finding the Fourth Proportional to 878,412.70, 1,317,619.05 and 436,044.70

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Solution

The fourth proportional to 878,412.70, 1,317,619.05 and 436,044.70 is: 654,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,412.70 : 1,317,619.05 = 436,044.70 : x
  2. Step 2: Convert to fraction form
    878,412.70/1,317,619.05 = 436,044.70/x
  3. Step 3: Cross multiply
    878,412.70x = 1,317,619.05 × 436,044.70
  4. Step 4: Simplify right side
    878,412.70x = 574,540,803,371.54
  5. Step 5: Solve for x
    x = 574,540,803,371.54/878,412.70
  6. Step 6: Final answer
    x = 654,067.05

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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.