Home / 871,604.17-1,202,926.11-489,704.77

Finding the Fourth Proportional to 871,604.17, 1,202,926.11 and 489,704.77

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Solution

The fourth proportional to 871,604.17, 1,202,926.11 and 489,704.77 is: 675,855.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,604.17 : 1,202,926.11 = 489,704.77 : x
  2. Step 2: Convert to fraction form
    871,604.17/1,202,926.11 = 489,704.77/x
  3. Step 3: Cross multiply
    871,604.17x = 1,202,926.11 × 489,704.77
  4. Step 4: Simplify right side
    871,604.17x = 589,078,654,024.55
  5. Step 5: Solve for x
    x = 589,078,654,024.55/871,604.17
  6. Step 6: Final answer
    x = 675,855.71

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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.