Home / 1,383,291.26-1,908,938.10-771,444.60

Finding the Fourth Proportional to 1,383,291.26, 1,908,938.10 and 771,444.60

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Solution

The fourth proportional to 1,383,291.26, 1,908,938.10 and 771,444.60 is: 1,064,591.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,291.26 : 1,908,938.10 = 771,444.60 : x
  2. Step 2: Convert to fraction form
    1,383,291.26/1,908,938.10 = 771,444.60/x
  3. Step 3: Cross multiply
    1,383,291.26x = 1,908,938.10 × 771,444.60
  4. Step 4: Simplify right side
    1,383,291.26x = 1,472,639,984,713.66
  5. Step 5: Solve for x
    x = 1,472,639,984,713.66/1,383,291.26
  6. Step 6: Final answer
    x = 1,064,591.41

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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.