Home / 913,853.76-1,261,077.03-505,926.96

Finding the Fourth Proportional to 913,853.76, 1,261,077.03 and 505,926.96

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Solution

The fourth proportional to 913,853.76, 1,261,077.03 and 505,926.96 is: 698,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,853.76 : 1,261,077.03 = 505,926.96 : x
  2. Step 2: Convert to fraction form
    913,853.76/1,261,077.03 = 505,926.96/x
  3. Step 3: Cross multiply
    913,853.76x = 1,261,077.03 × 505,926.96
  4. Step 4: Simplify right side
    913,853.76x = 638,012,868,113.73
  5. Step 5: Solve for x
    x = 638,012,868,113.73/913,853.76
  6. Step 6: Final answer
    x = 698,156.42

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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.