Home / 839,385.45-1,158,353.19-457,412.13

Finding the Fourth Proportional to 839,385.45, 1,158,353.19 and 457,412.13

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Solution

The fourth proportional to 839,385.45, 1,158,353.19 and 457,412.13 is: 631,229.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,385.45 : 1,158,353.19 = 457,412.13 : x
  2. Step 2: Convert to fraction form
    839,385.45/1,158,353.19 = 457,412.13/x
  3. Step 3: Cross multiply
    839,385.45x = 1,158,353.19 × 457,412.13
  4. Step 4: Simplify right side
    839,385.45x = 529,844,799,930.20
  5. Step 5: Solve for x
    x = 529,844,799,930.20/839,385.45
  6. Step 6: Final answer
    x = 631,229.43

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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.