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Finding the Fourth Proportional to 524,711.93, 786,874.68 and 187,661.21

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Solution

The fourth proportional to 524,711.93, 786,874.68 and 187,661.21 is: 281,422.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,711.93 : 786,874.68 = 187,661.21 : x
  2. Step 2: Convert to fraction form
    524,711.93/786,874.68 = 187,661.21/x
  3. Step 3: Cross multiply
    524,711.93x = 786,874.68 × 187,661.21
  4. Step 4: Simplify right side
    524,711.93x = 147,665,850,632.79
  5. Step 5: Solve for x
    x = 147,665,850,632.79/524,711.93
  6. Step 6: Final answer
    x = 281,422.71

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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.