Home / 861,203.60-1,291,656.36-262,019.60

Finding the Fourth Proportional to 861,203.60, 1,291,656.36 and 262,019.60

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Solution

The fourth proportional to 861,203.60, 1,291,656.36 and 262,019.60 is: 392,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,203.60 : 1,291,656.36 = 262,019.60 : x
  2. Step 2: Convert to fraction form
    861,203.60/1,291,656.36 = 262,019.60/x
  3. Step 3: Cross multiply
    861,203.60x = 1,291,656.36 × 262,019.60
  4. Step 4: Simplify right side
    861,203.60x = 338,439,282,784.66
  5. Step 5: Solve for x
    x = 338,439,282,784.66/861,203.60
  6. Step 6: Final answer
    x = 392,984.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.