Home / 662,899.75-913,999.07-515,767.39

Finding the Fourth Proportional to 662,899.75, 913,999.07 and 515,767.39

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Solution

The fourth proportional to 662,899.75, 913,999.07 and 515,767.39 is: 711,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,899.75 : 913,999.07 = 515,767.39 : x
  2. Step 2: Convert to fraction form
    662,899.75/913,999.07 = 515,767.39/x
  3. Step 3: Cross multiply
    662,899.75x = 913,999.07 × 515,767.39
  4. Step 4: Simplify right side
    662,899.75x = 471,410,914,796.33
  5. Step 5: Solve for x
    x = 471,410,914,796.33/662,899.75
  6. Step 6: Final answer
    x = 711,134.55

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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.