Home / 826,627.36-1,140,452.28-540,312.64

Finding the Fourth Proportional to 826,627.36, 1,140,452.28 and 540,312.64

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Solution

The fourth proportional to 826,627.36, 1,140,452.28 and 540,312.64 is: 745,439.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,627.36 : 1,140,452.28 = 540,312.64 : x
  2. Step 2: Convert to fraction form
    826,627.36/1,140,452.28 = 540,312.64/x
  3. Step 3: Cross multiply
    826,627.36x = 1,140,452.28 × 540,312.64
  4. Step 4: Simplify right side
    826,627.36x = 616,200,782,200.82
  5. Step 5: Solve for x
    x = 616,200,782,200.82/826,627.36
  6. Step 6: Final answer
    x = 745,439.62

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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.