Home / 1,431,082.81-1,974,941.63-786,525.85

Finding the Fourth Proportional to 1,431,082.81, 1,974,941.63 and 786,525.85

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Solution

The fourth proportional to 1,431,082.81, 1,974,941.63 and 786,525.85 is: 1,085,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,082.81 : 1,974,941.63 = 786,525.85 : x
  2. Step 2: Convert to fraction form
    1,431,082.81/1,974,941.63 = 786,525.85/x
  3. Step 3: Cross multiply
    1,431,082.81x = 1,974,941.63 × 786,525.85
  4. Step 4: Simplify right side
    1,431,082.81x = 1,553,342,644,236.14
  5. Step 5: Solve for x
    x = 1,553,342,644,236.14/1,431,082.81
  6. Step 6: Final answer
    x = 1,085,431.70

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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.