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Finding the Fourth Proportional to 635,618.80, 953,559.42 and 186,354.32

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Solution

The fourth proportional to 635,618.80, 953,559.42 and 186,354.32 is: 279,569.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,618.80 : 953,559.42 = 186,354.32 : x
  2. Step 2: Convert to fraction form
    635,618.80/953,559.42 = 186,354.32/x
  3. Step 3: Cross multiply
    635,618.80x = 953,559.42 × 186,354.32
  4. Step 4: Simplify right side
    635,618.80x = 177,699,916,361.92
  5. Step 5: Solve for x
    x = 177,699,916,361.92/635,618.80
  6. Step 6: Final answer
    x = 279,569.95

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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.