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Finding the Fourth Proportional to 617,120.80, 925,499.76 and 262,132

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Solution

The fourth proportional to 617,120.80, 925,499.76 and 262,132 is: 393,120.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,120.80 : 925,499.76 = 262,132 : x
  2. Step 2: Convert to fraction form
    617,120.80/925,499.76 = 262,132/x
  3. Step 3: Cross multiply
    617,120.80x = 925,499.76 × 262,132
  4. Step 4: Simplify right side
    617,120.80x = 242,603,103,088.32
  5. Step 5: Solve for x
    x = 242,603,103,088.32/617,120.80
  6. Step 6: Final answer
    x = 393,120.93

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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.