Home / 529,782.66-731,098.40-288,065.85

Finding the Fourth Proportional to 529,782.66, 731,098.40 and 288,065.85

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Solution

The fourth proportional to 529,782.66, 731,098.40 and 288,065.85 is: 397,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,782.66 : 731,098.40 = 288,065.85 : x
  2. Step 2: Convert to fraction form
    529,782.66/731,098.40 = 288,065.85/x
  3. Step 3: Cross multiply
    529,782.66x = 731,098.40 × 288,065.85
  4. Step 4: Simplify right side
    529,782.66x = 210,604,480,589.31
  5. Step 5: Solve for x
    x = 210,604,480,589.31/529,782.66
  6. Step 6: Final answer
    x = 397,529.96

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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.