Home / 781,010.64-1,078,353.27-609,120.59

Finding the Fourth Proportional to 781,010.64, 1,078,353.27 and 609,120.59

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Solution

The fourth proportional to 781,010.64, 1,078,353.27 and 609,120.59 is: 841,022.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,010.64 : 1,078,353.27 = 609,120.59 : x
  2. Step 2: Convert to fraction form
    781,010.64/1,078,353.27 = 609,120.59/x
  3. Step 3: Cross multiply
    781,010.64x = 1,078,353.27 × 609,120.59
  4. Step 4: Simplify right side
    781,010.64x = 656,847,174,659.06
  5. Step 5: Solve for x
    x = 656,847,174,659.06/781,010.64
  6. Step 6: Final answer
    x = 841,022.06

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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.