Home / 529,923.05-731,286.66-288,200.42

Finding the Fourth Proportional to 529,923.05, 731,286.66 and 288,200.42

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Solution

The fourth proportional to 529,923.05, 731,286.66 and 288,200.42 is: 397,712.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,923.05 : 731,286.66 = 288,200.42 : x
  2. Step 2: Convert to fraction form
    529,923.05/731,286.66 = 288,200.42/x
  3. Step 3: Cross multiply
    529,923.05x = 731,286.66 × 288,200.42
  4. Step 4: Simplify right side
    529,923.05x = 210,757,122,552.40
  5. Step 5: Solve for x
    x = 210,757,122,552.40/529,923.05
  6. Step 6: Final answer
    x = 397,712.69

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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.