Home / 879,303.36-1,213,372.80-492,067.52

Finding the Fourth Proportional to 879,303.36, 1,213,372.80 and 492,067.52

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Solution

The fourth proportional to 879,303.36, 1,213,372.80 and 492,067.52 is: 679,016.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,303.36 : 1,213,372.80 = 492,067.52 : x
  2. Step 2: Convert to fraction form
    879,303.36/1,213,372.80 = 492,067.52/x
  3. Step 3: Cross multiply
    879,303.36x = 1,213,372.80 × 492,067.52
  4. Step 4: Simplify right side
    879,303.36x = 597,061,344,531.46
  5. Step 5: Solve for x
    x = 597,061,344,531.46/879,303.36
  6. Step 6: Final answer
    x = 679,016.33

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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.