Home / 699,149.30-964,681.11-408,704.45

Finding the Fourth Proportional to 699,149.30, 964,681.11 and 408,704.45

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Solution

The fourth proportional to 699,149.30, 964,681.11 and 408,704.45 is: 563,927.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,149.30 : 964,681.11 = 408,704.45 : x
  2. Step 2: Convert to fraction form
    699,149.30/964,681.11 = 408,704.45/x
  3. Step 3: Cross multiply
    699,149.30x = 964,681.11 × 408,704.45
  4. Step 4: Simplify right side
    699,149.30x = 394,269,457,664.53
  5. Step 5: Solve for x
    x = 394,269,457,664.53/699,149.30
  6. Step 6: Final answer
    x = 563,927.42

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1.5x scale

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.