Home / 913,704.56-1,260,922.28-505,813.22

Finding the Fourth Proportional to 913,704.56, 1,260,922.28 and 505,813.22

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Solution

The fourth proportional to 913,704.56, 1,260,922.28 and 505,813.22 is: 698,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,704.56 : 1,260,922.28 = 505,813.22 : x
  2. Step 2: Convert to fraction form
    913,704.56/1,260,922.28 = 505,813.22/x
  3. Step 3: Cross multiply
    913,704.56x = 1,260,922.28 × 505,813.22
  4. Step 4: Simplify right side
    913,704.56x = 637,791,154,511.32
  5. Step 5: Solve for x
    x = 637,791,154,511.32/913,704.56
  6. Step 6: Final answer
    x = 698,027.76

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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.