Home / 517,369.20-713,975.40-291,012.72

Finding the Fourth Proportional to 517,369.20, 713,975.40 and 291,012.72

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Solution

The fourth proportional to 517,369.20, 713,975.40 and 291,012.72 is: 401,600.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,369.20 : 713,975.40 = 291,012.72 : x
  2. Step 2: Convert to fraction form
    517,369.20/713,975.40 = 291,012.72/x
  3. Step 3: Cross multiply
    517,369.20x = 713,975.40 × 291,012.72
  4. Step 4: Simplify right side
    517,369.20x = 207,775,923,167.09
  5. Step 5: Solve for x
    x = 207,775,923,167.09/517,369.20
  6. Step 6: Final answer
    x = 401,600.87

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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.