Home / 529,943.69-731,327.19-288,231.05

Finding the Fourth Proportional to 529,943.69, 731,327.19 and 288,231.05

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Solution

The fourth proportional to 529,943.69, 731,327.19 and 288,231.05 is: 397,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,943.69 : 731,327.19 = 288,231.05 : x
  2. Step 2: Convert to fraction form
    529,943.69/731,327.19 = 288,231.05/x
  3. Step 3: Cross multiply
    529,943.69x = 731,327.19 × 288,231.05
  4. Step 4: Simplify right side
    529,943.69x = 210,791,203,867.25
  5. Step 5: Solve for x
    x = 210,791,203,867.25/529,943.69
  6. Step 6: Final answer
    x = 397,761.51

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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.