Home / 839,219.52-1,258,828.13-389,694.58

Finding the Fourth Proportional to 839,219.52, 1,258,828.13 and 389,694.58

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Solution

The fourth proportional to 839,219.52, 1,258,828.13 and 389,694.58 is: 584,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,219.52 : 1,258,828.13 = 389,694.58 : x
  2. Step 2: Convert to fraction form
    839,219.52/1,258,828.13 = 389,694.58/x
  3. Step 3: Cross multiply
    839,219.52x = 1,258,828.13 × 389,694.58
  4. Step 4: Simplify right side
    839,219.52x = 490,558,499,412.54
  5. Step 5: Solve for x
    x = 490,558,499,412.54/839,219.52
  6. Step 6: Final answer
    x = 584,541.34

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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.