Home / 838,420.24-1,157,170.84-494,235.64

Finding the Fourth Proportional to 838,420.24, 1,157,170.84 and 494,235.64

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Solution

The fourth proportional to 838,420.24, 1,157,170.84 and 494,235.64 is: 682,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,420.24 : 1,157,170.84 = 494,235.64 : x
  2. Step 2: Convert to fraction form
    838,420.24/1,157,170.84 = 494,235.64/x
  3. Step 3: Cross multiply
    838,420.24x = 1,157,170.84 × 494,235.64
  4. Step 4: Simplify right side
    838,420.24x = 571,915,070,696.74
  5. Step 5: Solve for x
    x = 571,915,070,696.74/838,420.24
  6. Step 6: Final answer
    x = 682,134.14

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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.