Home / 1,266,286.40-1,897,816.80-517,486.40

Finding the Fourth Proportional to 1,266,286.40, 1,897,816.80 and 517,486.40

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Solution

The fourth proportional to 1,266,286.40, 1,897,816.80 and 517,486.40 is: 775,570.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,286.40 : 1,897,816.80 = 517,486.40 : x
  2. Step 2: Convert to fraction form
    1,266,286.40/1,897,816.80 = 517,486.40/x
  3. Step 3: Cross multiply
    1,266,286.40x = 1,897,816.80 × 517,486.40
  4. Step 4: Simplify right side
    1,266,286.40x = 982,094,383,691.52
  5. Step 5: Solve for x
    x = 982,094,383,691.52/1,266,286.40
  6. Step 6: Final answer
    x = 775,570.51

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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.