Home / 712,630.64-983,418.18-385,940.90

Finding the Fourth Proportional to 712,630.64, 983,418.18 and 385,940.90

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Solution

The fourth proportional to 712,630.64, 983,418.18 and 385,940.90 is: 532,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,630.64 : 983,418.18 = 385,940.90 : x
  2. Step 2: Convert to fraction form
    712,630.64/983,418.18 = 385,940.90/x
  3. Step 3: Cross multiply
    712,630.64x = 983,418.18 × 385,940.90
  4. Step 4: Simplify right side
    712,630.64x = 379,541,297,465.56
  5. Step 5: Solve for x
    x = 379,541,297,465.56/712,630.64
  6. Step 6: Final answer
    x = 532,591.89

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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.