Home / 529,784.31-731,103.66-288,066.75

Finding the Fourth Proportional to 529,784.31, 731,103.66 and 288,066.75

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Solution

The fourth proportional to 529,784.31, 731,103.66 and 288,066.75 is: 397,532.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,784.31 : 731,103.66 = 288,066.75 : x
  2. Step 2: Convert to fraction form
    529,784.31/731,103.66 = 288,066.75/x
  3. Step 3: Cross multiply
    529,784.31x = 731,103.66 × 288,066.75
  4. Step 4: Simplify right side
    529,784.31x = 210,606,655,249.31
  5. Step 5: Solve for x
    x = 210,606,655,249.31/529,784.31
  6. Step 6: Final answer
    x = 397,532.83

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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.