Home / 1,383,715.68-1,909,454.76-771,932.40

Finding the Fourth Proportional to 1,383,715.68, 1,909,454.76 and 771,932.40

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Solution

The fourth proportional to 1,383,715.68, 1,909,454.76 and 771,932.40 is: 1,065,226.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,715.68 : 1,909,454.76 = 771,932.40 : x
  2. Step 2: Convert to fraction form
    1,383,715.68/1,909,454.76 = 771,932.40/x
  3. Step 3: Cross multiply
    1,383,715.68x = 1,909,454.76 × 771,932.40
  4. Step 4: Simplify right side
    1,383,715.68x = 1,473,969,995,578.22
  5. Step 5: Solve for x
    x = 1,473,969,995,578.22/1,383,715.68
  6. Step 6: Final answer
    x = 1,065,226.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.