Home / 1,383,284.03-1,908,928.27-771,437.52

Finding the Fourth Proportional to 1,383,284.03, 1,908,928.27 and 771,437.52

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Solution

The fourth proportional to 1,383,284.03, 1,908,928.27 and 771,437.52 is: 1,064,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,284.03 : 1,908,928.27 = 771,437.52 : x
  2. Step 2: Convert to fraction form
    1,383,284.03/1,908,928.27 = 771,437.52/x
  3. Step 3: Cross multiply
    1,383,284.03x = 1,908,928.27 × 771,437.52
  4. Step 4: Simplify right side
    1,383,284.03x = 1,472,618,887,091.65
  5. Step 5: Solve for x
    x = 1,472,618,887,091.65/1,383,284.03
  6. Step 6: Final answer
    x = 1,064,581.72

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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.