Home / 913,870.26-1,261,099.80-505,943.46

Finding the Fourth Proportional to 913,870.26, 1,261,099.80 and 505,943.46

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Solution

The fourth proportional to 913,870.26, 1,261,099.80 and 505,943.46 is: 698,179.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,870.26 : 1,261,099.80 = 505,943.46 : x
  2. Step 2: Convert to fraction form
    913,870.26/1,261,099.80 = 505,943.46/x
  3. Step 3: Cross multiply
    913,870.26x = 1,261,099.80 × 505,943.46
  4. Step 4: Simplify right side
    913,870.26x = 638,045,196,217.31
  5. Step 5: Solve for x
    x = 638,045,196,217.31/913,870.26
  6. Step 6: Final answer
    x = 698,179.19

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1.5x scale

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.