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Finding the Fourth Proportional to 673,612.70, 929,584.94 and 371,805.98

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Solution

The fourth proportional to 673,612.70, 929,584.94 and 371,805.98 is: 513,091.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,612.70 : 929,584.94 = 371,805.98 : x
  2. Step 2: Convert to fraction form
    673,612.70/929,584.94 = 371,805.98/x
  3. Step 3: Cross multiply
    673,612.70x = 929,584.94 × 371,805.98
  4. Step 4: Simplify right side
    673,612.70x = 345,625,239,609.94
  5. Step 5: Solve for x
    x = 345,625,239,609.94/673,612.70
  6. Step 6: Final answer
    x = 513,091.93

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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.