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Finding the Fourth Proportional to 613,386.94, 920,117.17 and 192,662.82

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Solution

The fourth proportional to 613,386.94, 920,117.17 and 192,662.82 is: 289,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,386.94 : 920,117.17 = 192,662.82 : x
  2. Step 2: Convert to fraction form
    613,386.94/920,117.17 = 192,662.82/x
  3. Step 3: Cross multiply
    613,386.94x = 920,117.17 × 192,662.82
  4. Step 4: Simplify right side
    613,386.94x = 177,272,368,702.62
  5. Step 5: Solve for x
    x = 177,272,368,702.62/613,386.94
  6. Step 6: Final answer
    x = 289,005.78

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1.5x scale

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.