Home / 699,041.90-964,668.61-393,118.19

Finding the Fourth Proportional to 699,041.90, 964,668.61 and 393,118.19

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Solution

The fourth proportional to 699,041.90, 964,668.61 and 393,118.19 is: 542,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,041.90 : 964,668.61 = 393,118.19 : x
  2. Step 2: Convert to fraction form
    699,041.90/964,668.61 = 393,118.19/x
  3. Step 3: Cross multiply
    699,041.90x = 964,668.61 × 393,118.19
  4. Step 4: Simplify right side
    699,041.90x = 379,228,777,913.02
  5. Step 5: Solve for x
    x = 379,228,777,913.02/699,041.90
  6. Step 6: Final answer
    x = 542,497.92

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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.