Home / 936,288.30-1,292,077.38-528,475.71

Finding the Fourth Proportional to 936,288.30, 1,292,077.38 and 528,475.71

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Solution

The fourth proportional to 936,288.30, 1,292,077.38 and 528,475.71 is: 729,296.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,288.30 : 1,292,077.38 = 528,475.71 : x
  2. Step 2: Convert to fraction form
    936,288.30/1,292,077.38 = 528,475.71/x
  3. Step 3: Cross multiply
    936,288.30x = 1,292,077.38 × 528,475.71
  4. Step 4: Simplify right side
    936,288.30x = 682,831,510,770.44
  5. Step 5: Solve for x
    x = 682,831,510,770.44/936,288.30
  6. Step 6: Final answer
    x = 729,296.21

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Double scale
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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.