Home / 936,240-1,292,044.44-528,441.12

Finding the Fourth Proportional to 936,240, 1,292,044.44 and 528,441.12

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Solution

The fourth proportional to 936,240, 1,292,044.44 and 528,441.12 is: 729,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,240 : 1,292,044.44 = 528,441.12 : x
  2. Step 2: Convert to fraction form
    936,240/1,292,044.44 = 528,441.12/x
  3. Step 3: Cross multiply
    936,240x = 1,292,044.44 × 528,441.12
  4. Step 4: Simplify right side
    936,240x = 682,769,410,963.37
  5. Step 5: Solve for x
    x = 682,769,410,963.37/936,240
  6. Step 6: Final answer
    x = 729,267.51

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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.