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Finding the Fourth Proportional to 471,373.80, 707,060.70 and 191,092.20

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Solution

The fourth proportional to 471,373.80, 707,060.70 and 191,092.20 is: 286,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,373.80 : 707,060.70 = 191,092.20 : x
  2. Step 2: Convert to fraction form
    471,373.80/707,060.70 = 191,092.20/x
  3. Step 3: Cross multiply
    471,373.80x = 707,060.70 × 191,092.20
  4. Step 4: Simplify right side
    471,373.80x = 135,113,784,696.54
  5. Step 5: Solve for x
    x = 135,113,784,696.54/471,373.80
  6. Step 6: Final answer
    x = 286,638.30

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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.