Home / 983,187.26-1,356,999.40-620,366.70

Finding the Fourth Proportional to 983,187.26, 1,356,999.40 and 620,366.70

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Solution

The fourth proportional to 983,187.26, 1,356,999.40 and 620,366.70 is: 856,232.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,187.26 : 1,356,999.40 = 620,366.70 : x
  2. Step 2: Convert to fraction form
    983,187.26/1,356,999.40 = 620,366.70/x
  3. Step 3: Cross multiply
    983,187.26x = 1,356,999.40 × 620,366.70
  4. Step 4: Simplify right side
    983,187.26x = 841,837,239,679.98
  5. Step 5: Solve for x
    x = 841,837,239,679.98/983,187.26
  6. Step 6: Final answer
    x = 856,232.86

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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.