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Finding the Fourth Proportional to 617,292.90, 926,028.06 and 190,861.95

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Solution

The fourth proportional to 617,292.90, 926,028.06 and 190,861.95 is: 286,320.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,292.90 : 926,028.06 = 190,861.95 : x
  2. Step 2: Convert to fraction form
    617,292.90/926,028.06 = 190,861.95/x
  3. Step 3: Cross multiply
    617,292.90x = 926,028.06 × 190,861.95
  4. Step 4: Simplify right side
    617,292.90x = 176,743,521,286.32
  5. Step 5: Solve for x
    x = 176,743,521,286.32/617,292.90
  6. Step 6: Final answer
    x = 286,320.35

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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.