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Finding the Fourth Proportional to 672,866.88, 928,553.49 and 366,942.43

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Solution

The fourth proportional to 672,866.88, 928,553.49 and 366,942.43 is: 506,379.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,866.88 : 928,553.49 = 366,942.43 : x
  2. Step 2: Convert to fraction form
    672,866.88/928,553.49 = 366,942.43/x
  3. Step 3: Cross multiply
    672,866.88x = 928,553.49 × 366,942.43
  4. Step 4: Simplify right side
    672,866.88x = 340,725,674,005.58
  5. Step 5: Solve for x
    x = 340,725,674,005.58/672,866.88
  6. Step 6: Final answer
    x = 506,379.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.