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Finding the Fourth Proportional to 429,588.36, 644,135.64 and 177,043.20

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Solution

The fourth proportional to 429,588.36, 644,135.64 and 177,043.20 is: 265,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,588.36 : 644,135.64 = 177,043.20 : x
  2. Step 2: Convert to fraction form
    429,588.36/644,135.64 = 177,043.20/x
  3. Step 3: Cross multiply
    429,588.36x = 644,135.64 × 177,043.20
  4. Step 4: Simplify right side
    429,588.36x = 114,039,834,939.65
  5. Step 5: Solve for x
    x = 114,039,834,939.65/429,588.36
  6. Step 6: Final answer
    x = 265,463.05

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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.