Home / 515,895.53-773,143.43-291,144.83

Finding the Fourth Proportional to 515,895.53, 773,143.43 and 291,144.83

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Solution

The fourth proportional to 515,895.53, 773,143.43 and 291,144.83 is: 436,322.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,895.53 : 773,143.43 = 291,144.83 : x
  2. Step 2: Convert to fraction form
    515,895.53/773,143.43 = 291,144.83/x
  3. Step 3: Cross multiply
    515,895.53x = 773,143.43 × 291,144.83
  4. Step 4: Simplify right side
    515,895.53x = 225,096,707,171.53
  5. Step 5: Solve for x
    x = 225,096,707,171.53/515,895.53
  6. Step 6: Final answer
    x = 436,322.27

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1.5x scale

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.