Home / 1,015,212.57-1,400,993.36-556,345.20

Finding the Fourth Proportional to 1,015,212.57, 1,400,993.36 and 556,345.20

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Solution

The fourth proportional to 1,015,212.57, 1,400,993.36 and 556,345.20 is: 767,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,212.57 : 1,400,993.36 = 556,345.20 : x
  2. Step 2: Convert to fraction form
    1,015,212.57/1,400,993.36 = 556,345.20/x
  3. Step 3: Cross multiply
    1,015,212.57x = 1,400,993.36 × 556,345.20
  4. Step 4: Simplify right side
    1,015,212.57x = 779,435,931,067.87
  5. Step 5: Solve for x
    x = 779,435,931,067.87/1,015,212.57
  6. Step 6: Final answer
    x = 767,756.38

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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.