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Finding the Fourth Proportional to 617,122.66, 925,772.52 and 190,695.70

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Solution

The fourth proportional to 617,122.66, 925,772.52 and 190,695.70 is: 286,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,122.66 : 925,772.52 = 190,695.70 : x
  2. Step 2: Convert to fraction form
    617,122.66/925,772.52 = 190,695.70/x
  3. Step 3: Cross multiply
    617,122.66x = 925,772.52 × 190,695.70
  4. Step 4: Simplify right side
    617,122.66x = 176,540,838,742.16
  5. Step 5: Solve for x
    x = 176,540,838,742.16/617,122.66
  6. Step 6: Final answer
    x = 286,070.91

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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.