Home / 1,286,883.42-1,930,276.59-388,301.19

Finding the Fourth Proportional to 1,286,883.42, 1,930,276.59 and 388,301.19

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Solution

The fourth proportional to 1,286,883.42, 1,930,276.59 and 388,301.19 is: 582,437.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,883.42 : 1,930,276.59 = 388,301.19 : x
  2. Step 2: Convert to fraction form
    1,286,883.42/1,930,276.59 = 388,301.19/x
  3. Step 3: Cross multiply
    1,286,883.42x = 1,930,276.59 × 388,301.19
  4. Step 4: Simplify right side
    1,286,883.42x = 749,528,696,926.14
  5. Step 5: Solve for x
    x = 749,528,696,926.14/1,286,883.42
  6. Step 6: Final answer
    x = 582,437.14

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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.