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Finding the Fourth Proportional to 517,573.04, 714,249.24 and 291,218.72

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Solution

The fourth proportional to 517,573.04, 714,249.24 and 291,218.72 is: 401,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,573.04 : 714,249.24 = 291,218.72 : x
  2. Step 2: Convert to fraction form
    517,573.04/714,249.24 = 291,218.72/x
  3. Step 3: Cross multiply
    517,573.04x = 714,249.24 × 291,218.72
  4. Step 4: Simplify right side
    517,573.04x = 208,002,749,433.77
  5. Step 5: Solve for x
    x = 208,002,749,433.77/517,573.04
  6. Step 6: Final answer
    x = 401,880.96

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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.