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Finding the Fourth Proportional to 617,959.70, 926,421.15 and 322,471.70

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Solution

The fourth proportional to 617,959.70, 926,421.15 and 322,471.70 is: 483,437.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,959.70 : 926,421.15 = 322,471.70 : x
  2. Step 2: Convert to fraction form
    617,959.70/926,421.15 = 322,471.70/x
  3. Step 3: Cross multiply
    617,959.70x = 926,421.15 × 322,471.70
  4. Step 4: Simplify right side
    617,959.70x = 298,744,603,156.46
  5. Step 5: Solve for x
    x = 298,744,603,156.46/617,959.70
  6. Step 6: Final answer
    x = 483,437.03

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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.