Home / 839,218.77-1,258,827.01-389,693.83

Finding the Fourth Proportional to 839,218.77, 1,258,827.01 and 389,693.83

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Solution

The fourth proportional to 839,218.77, 1,258,827.01 and 389,693.83 is: 584,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,218.77 : 1,258,827.01 = 389,693.83 : x
  2. Step 2: Convert to fraction form
    839,218.77/1,258,827.01 = 389,693.83/x
  3. Step 3: Cross multiply
    839,218.77x = 1,258,827.01 × 389,693.83
  4. Step 4: Simplify right side
    839,218.77x = 490,557,111,565.98
  5. Step 5: Solve for x
    x = 490,557,111,565.98/839,218.77
  6. Step 6: Final answer
    x = 584,540.21

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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.