Home / 1,338,266.70-2,007,205.65-391,538.70

Finding the Fourth Proportional to 1,338,266.70, 2,007,205.65 and 391,538.70

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Solution

The fourth proportional to 1,338,266.70, 2,007,205.65 and 391,538.70 is: 587,251.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,266.70 : 2,007,205.65 = 391,538.70 : x
  2. Step 2: Convert to fraction form
    1,338,266.70/2,007,205.65 = 391,538.70/x
  3. Step 3: Cross multiply
    1,338,266.70x = 2,007,205.65 × 391,538.70
  4. Step 4: Simplify right side
    1,338,266.70x = 785,898,690,833.66
  5. Step 5: Solve for x
    x = 785,898,690,833.66/1,338,266.70
  6. Step 6: Final answer
    x = 587,251.17

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1.5x scale

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.