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Finding the Fourth Proportional to 527,271.93, 790,944.48 and 211,728.87

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Solution

The fourth proportional to 527,271.93, 790,944.48 and 211,728.87 is: 317,608.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,271.93 : 790,944.48 = 211,728.87 : x
  2. Step 2: Convert to fraction form
    527,271.93/790,944.48 = 211,728.87/x
  3. Step 3: Cross multiply
    527,271.93x = 790,944.48 × 211,728.87
  4. Step 4: Simplify right side
    527,271.93x = 167,465,780,983.14
  5. Step 5: Solve for x
    x = 167,465,780,983.14/527,271.93
  6. Step 6: Final answer
    x = 317,608.00

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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.