Home / 798,422.94-1,101,816.09-492,376.98

Finding the Fourth Proportional to 798,422.94, 1,101,816.09 and 492,376.98

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Solution

The fourth proportional to 798,422.94, 1,101,816.09 and 492,376.98 is: 679,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,422.94 : 1,101,816.09 = 492,376.98 : x
  2. Step 2: Convert to fraction form
    798,422.94/1,101,816.09 = 492,376.98/x
  3. Step 3: Cross multiply
    798,422.94x = 1,101,816.09 × 492,376.98
  4. Step 4: Simplify right side
    798,422.94x = 542,508,878,909.61
  5. Step 5: Solve for x
    x = 542,508,878,909.61/798,422.94
  6. Step 6: Final answer
    x = 679,475.57

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Double scale
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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.