Home / 691,934.55-954,938.21-419,981.10

Finding the Fourth Proportional to 691,934.55, 954,938.21 and 419,981.10

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Solution

The fourth proportional to 691,934.55, 954,938.21 and 419,981.10 is: 579,615.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,934.55 : 954,938.21 = 419,981.10 : x
  2. Step 2: Convert to fraction form
    691,934.55/954,938.21 = 419,981.10/x
  3. Step 3: Cross multiply
    691,934.55x = 954,938.21 × 419,981.10
  4. Step 4: Simplify right side
    691,934.55x = 401,055,997,767.93
  5. Step 5: Solve for x
    x = 401,055,997,767.93/691,934.55
  6. Step 6: Final answer
    x = 579,615.51

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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.