Home / 839,228.69-1,258,841.89-389,703.75

Finding the Fourth Proportional to 839,228.69, 1,258,841.89 and 389,703.75

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Solution

The fourth proportional to 839,228.69, 1,258,841.89 and 389,703.75 is: 584,555.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,228.69 : 1,258,841.89 = 389,703.75 : x
  2. Step 2: Convert to fraction form
    839,228.69/1,258,841.89 = 389,703.75/x
  3. Step 3: Cross multiply
    839,228.69x = 1,258,841.89 × 389,703.75
  4. Step 4: Simplify right side
    839,228.69x = 490,575,405,190.09
  5. Step 5: Solve for x
    x = 490,575,405,190.09/839,228.69
  6. Step 6: Final answer
    x = 584,555.09

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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.