Home / 509,156.48-763,833.05-193,588.85

Finding the Fourth Proportional to 509,156.48, 763,833.05 and 193,588.85

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Solution

The fourth proportional to 509,156.48, 763,833.05 and 193,588.85 is: 290,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,156.48 : 763,833.05 = 193,588.85 : x
  2. Step 2: Convert to fraction form
    509,156.48/763,833.05 = 193,588.85/x
  3. Step 3: Cross multiply
    509,156.48x = 763,833.05 × 193,588.85
  4. Step 4: Simplify right side
    509,156.48x = 147,869,561,741.49
  5. Step 5: Solve for x
    x = 147,869,561,741.49/509,156.48
  6. Step 6: Final answer
    x = 290,420.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.