Home / 839,219.39-1,258,827.95-389,694.45

Finding the Fourth Proportional to 839,219.39, 1,258,827.95 and 389,694.45

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Solution

The fourth proportional to 839,219.39, 1,258,827.95 and 389,694.45 is: 584,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,219.39 : 1,258,827.95 = 389,694.45 : x
  2. Step 2: Convert to fraction form
    839,219.39/1,258,827.95 = 389,694.45/x
  3. Step 3: Cross multiply
    839,219.39x = 1,258,827.95 × 389,694.45
  4. Step 4: Simplify right side
    839,219.39x = 490,558,263,671.41
  5. Step 5: Solve for x
    x = 490,558,263,671.41/839,219.39
  6. Step 6: Final answer
    x = 584,541.14

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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.