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Finding the Fourth Proportional to 617,510.48, 926,248.44 and 196,811.60

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Solution

The fourth proportional to 617,510.48, 926,248.44 and 196,811.60 is: 295,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,510.48 : 926,248.44 = 196,811.60 : x
  2. Step 2: Convert to fraction form
    617,510.48/926,248.44 = 196,811.60/x
  3. Step 3: Cross multiply
    617,510.48x = 926,248.44 × 196,811.60
  4. Step 4: Simplify right side
    617,510.48x = 182,296,437,473.90
  5. Step 5: Solve for x
    x = 182,296,437,473.90/617,510.48
  6. Step 6: Final answer
    x = 295,211.89

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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.