Home / 913,855.26-1,261,079.10-505,928.46

Finding the Fourth Proportional to 913,855.26, 1,261,079.10 and 505,928.46

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Solution

The fourth proportional to 913,855.26, 1,261,079.10 and 505,928.46 is: 698,158.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,855.26 : 1,261,079.10 = 505,928.46 : x
  2. Step 2: Convert to fraction form
    913,855.26/1,261,079.10 = 505,928.46/x
  3. Step 3: Cross multiply
    913,855.26x = 1,261,079.10 × 505,928.46
  4. Step 4: Simplify right side
    913,855.26x = 638,015,807,001.19
  5. Step 5: Solve for x
    x = 638,015,807,001.19/913,855.26
  6. Step 6: Final answer
    x = 698,158.49

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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.