Home / 691,631.82-954,450.03-385,708.53

Finding the Fourth Proportional to 691,631.82, 954,450.03 and 385,708.53

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Solution

The fourth proportional to 691,631.82, 954,450.03 and 385,708.53 is: 532,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,631.82 : 954,450.03 = 385,708.53 : x
  2. Step 2: Convert to fraction form
    691,631.82/954,450.03 = 385,708.53/x
  3. Step 3: Cross multiply
    691,631.82x = 954,450.03 × 385,708.53
  4. Step 4: Simplify right side
    691,631.82x = 368,139,523,055.35
  5. Step 5: Solve for x
    x = 368,139,523,055.35/691,631.82
  6. Step 6: Final answer
    x = 532,276.73

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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.