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Finding the Fourth Proportional to 484,347.24, 726,529.78 and 210,765.85

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Solution

The fourth proportional to 484,347.24, 726,529.78 and 210,765.85 is: 316,152.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,347.24 : 726,529.78 = 210,765.85 : x
  2. Step 2: Convert to fraction form
    484,347.24/726,529.78 = 210,765.85/x
  3. Step 3: Cross multiply
    484,347.24x = 726,529.78 × 210,765.85
  4. Step 4: Simplify right side
    484,347.24x = 153,127,667,803.63
  5. Step 5: Solve for x
    x = 153,127,667,803.63/484,347.24
  6. Step 6: Final answer
    x = 316,152.66

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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.