Home / 418,899.15-623,912.07-416,857.95

Finding the Fourth Proportional to 418,899.15, 623,912.07 and 416,857.95

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Solution

The fourth proportional to 418,899.15, 623,912.07 and 416,857.95 is: 620,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,899.15 : 623,912.07 = 416,857.95 : x
  2. Step 2: Convert to fraction form
    418,899.15/623,912.07 = 416,857.95/x
  3. Step 3: Cross multiply
    418,899.15x = 623,912.07 × 416,857.95
  4. Step 4: Simplify right side
    418,899.15x = 260,082,706,480.46
  5. Step 5: Solve for x
    x = 260,082,706,480.46/418,899.15
  6. Step 6: Final answer
    x = 620,871.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.