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Finding the Fourth Proportional to 524,924.88, 787,399.47 and 187,988.64

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Solution

The fourth proportional to 524,924.88, 787,399.47 and 187,988.64 is: 281,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,924.88 : 787,399.47 = 187,988.64 : x
  2. Step 2: Convert to fraction form
    524,924.88/787,399.47 = 187,988.64/x
  3. Step 3: Cross multiply
    524,924.88x = 787,399.47 × 187,988.64
  4. Step 4: Simplify right side
    524,924.88x = 148,022,155,502.02
  5. Step 5: Solve for x
    x = 148,022,155,502.02/524,924.88
  6. Step 6: Final answer
    x = 281,987.31

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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.