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Finding the Fourth Proportional to 617,282.37, 926,034.12 and 218,154.87

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Solution

The fourth proportional to 617,282.37, 926,034.12 and 218,154.87 is: 327,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,282.37 : 926,034.12 = 218,154.87 : x
  2. Step 2: Convert to fraction form
    617,282.37/926,034.12 = 218,154.87/x
  3. Step 3: Cross multiply
    617,282.37x = 926,034.12 × 218,154.87
  4. Step 4: Simplify right side
    617,282.37x = 202,018,853,064.16
  5. Step 5: Solve for x
    x = 202,018,853,064.16/617,282.37
  6. Step 6: Final answer
    x = 327,271.38

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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.