Home / 529,844.60-731,194.47-288,134.30

Finding the Fourth Proportional to 529,844.60, 731,194.47 and 288,134.30

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Solution

The fourth proportional to 529,844.60, 731,194.47 and 288,134.30 is: 397,630.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,844.60 : 731,194.47 = 288,134.30 : x
  2. Step 2: Convert to fraction form
    529,844.60/731,194.47 = 288,134.30/x
  3. Step 3: Cross multiply
    529,844.60x = 731,194.47 × 288,134.30
  4. Step 4: Simplify right side
    529,844.60x = 210,682,203,121.35
  5. Step 5: Solve for x
    x = 210,682,203,121.35/529,844.60
  6. Step 6: Final answer
    x = 397,630.18

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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.