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Finding the Fourth Proportional to 429,033.64, 643,552.62 and 176,451.88

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Solution

The fourth proportional to 429,033.64, 643,552.62 and 176,451.88 is: 264,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,033.64 : 643,552.62 = 176,451.88 : x
  2. Step 2: Convert to fraction form
    429,033.64/643,552.62 = 176,451.88/x
  3. Step 3: Cross multiply
    429,033.64x = 643,552.62 × 176,451.88
  4. Step 4: Simplify right side
    429,033.64x = 113,556,069,677.93
  5. Step 5: Solve for x
    x = 113,556,069,677.93/429,033.64
  6. Step 6: Final answer
    x = 264,678.71

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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.