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Finding the Fourth Proportional to 416,989, 625,587.99 and 192,506.41

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Solution

The fourth proportional to 416,989, 625,587.99 and 192,506.41 is: 288,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,989 : 625,587.99 = 192,506.41 : x
  2. Step 2: Convert to fraction form
    416,989/625,587.99 = 192,506.41/x
  3. Step 3: Cross multiply
    416,989x = 625,587.99 × 192,506.41
  4. Step 4: Simplify right side
    416,989x = 120,429,698,094.02
  5. Step 5: Solve for x
    x = 120,429,698,094.02/416,989
  6. Step 6: Final answer
    x = 288,807.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.