Home / 717,044.90-989,506.39-394,742.66

Finding the Fourth Proportional to 717,044.90, 989,506.39 and 394,742.66

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Solution

The fourth proportional to 717,044.90, 989,506.39 and 394,742.66 is: 544,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,044.90 : 989,506.39 = 394,742.66 : x
  2. Step 2: Convert to fraction form
    717,044.90/989,506.39 = 394,742.66/x
  3. Step 3: Cross multiply
    717,044.90x = 989,506.39 × 394,742.66
  4. Step 4: Simplify right side
    717,044.90x = 390,600,384,475.60
  5. Step 5: Solve for x
    x = 390,600,384,475.60/717,044.90
  6. Step 6: Final answer
    x = 544,736.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.