Home / 1,339,838.20-2,005,091.70-919,934.20

Finding the Fourth Proportional to 1,339,838.20, 2,005,091.70 and 919,934.20

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Solution

The fourth proportional to 1,339,838.20, 2,005,091.70 and 919,934.20 is: 1,376,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,838.20 : 2,005,091.70 = 919,934.20 : x
  2. Step 2: Convert to fraction form
    1,339,838.20/2,005,091.70 = 919,934.20/x
  3. Step 3: Cross multiply
    1,339,838.20x = 2,005,091.70 × 919,934.20
  4. Step 4: Simplify right side
    1,339,838.20x = 1,844,552,428,966.14
  5. Step 5: Solve for x
    x = 1,844,552,428,966.14/1,339,838.20
  6. Step 6: Final answer
    x = 1,376,697.89

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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.