Home / 766,451.37-1,057,726.76-439,824.19

Finding the Fourth Proportional to 766,451.37, 1,057,726.76 and 439,824.19

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Solution

The fourth proportional to 766,451.37, 1,057,726.76 and 439,824.19 is: 606,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,451.37 : 1,057,726.76 = 439,824.19 : x
  2. Step 2: Convert to fraction form
    766,451.37/1,057,726.76 = 439,824.19/x
  3. Step 3: Cross multiply
    766,451.37x = 1,057,726.76 × 439,824.19
  4. Step 4: Simplify right side
    766,451.37x = 465,213,815,027.90
  5. Step 5: Solve for x
    x = 465,213,815,027.90/766,451.37
  6. Step 6: Final answer
    x = 606,971.08

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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.