Home / 839,218.52-1,258,826.63-389,693.58

Finding the Fourth Proportional to 839,218.52, 1,258,826.63 and 389,693.58

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Solution

The fourth proportional to 839,218.52, 1,258,826.63 and 389,693.58 is: 584,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,218.52 : 1,258,826.63 = 389,693.58 : x
  2. Step 2: Convert to fraction form
    839,218.52/1,258,826.63 = 389,693.58/x
  3. Step 3: Cross multiply
    839,218.52x = 1,258,826.63 × 389,693.58
  4. Step 4: Simplify right side
    839,218.52x = 490,556,650,724.14
  5. Step 5: Solve for x
    x = 490,556,650,724.14/839,218.52
  6. Step 6: Final answer
    x = 584,539.83

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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.