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Finding the Fourth Proportional to 615,494.80, 923,328.60 and 194,726.80

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Solution

The fourth proportional to 615,494.80, 923,328.60 and 194,726.80 is: 292,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,494.80 : 923,328.60 = 194,726.80 : x
  2. Step 2: Convert to fraction form
    615,494.80/923,328.60 = 194,726.80/x
  3. Step 3: Cross multiply
    615,494.80x = 923,328.60 × 194,726.80
  4. Step 4: Simplify right side
    615,494.80x = 179,796,823,626.48
  5. Step 5: Solve for x
    x = 179,796,823,626.48/615,494.80
  6. Step 6: Final answer
    x = 292,117.53

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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.