Home / 1,040,331.60-1,561,383.36-409,688.28

Finding the Fourth Proportional to 1,040,331.60, 1,561,383.36 and 409,688.28

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Solution

The fourth proportional to 1,040,331.60, 1,561,383.36 and 409,688.28 is: 614,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,331.60 : 1,561,383.36 = 409,688.28 : x
  2. Step 2: Convert to fraction form
    1,040,331.60/1,561,383.36 = 409,688.28/x
  3. Step 3: Cross multiply
    1,040,331.60x = 1,561,383.36 × 409,688.28
  4. Step 4: Simplify right side
    1,040,331.60x = 639,680,463,179.02
  5. Step 5: Solve for x
    x = 639,680,463,179.02/1,040,331.60
  6. Step 6: Final answer
    x = 614,881.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.