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Finding the Fourth Proportional to 572,006.70, 858,994.20 and 373,208.40

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Solution

The fourth proportional to 572,006.70, 858,994.20 and 373,208.40 is: 560,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,006.70 : 858,994.20 = 373,208.40 : x
  2. Step 2: Convert to fraction form
    572,006.70/858,994.20 = 373,208.40/x
  3. Step 3: Cross multiply
    572,006.70x = 858,994.20 × 373,208.40
  4. Step 4: Simplify right side
    572,006.70x = 320,583,850,991.28
  5. Step 5: Solve for x
    x = 320,583,850,991.28/572,006.70
  6. Step 6: Final answer
    x = 560,454.71

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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.