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Finding the Fourth Proportional to 613,385.19, 920,114.54 and 192,661.07

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Solution

The fourth proportional to 613,385.19, 920,114.54 and 192,661.07 is: 289,003.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,385.19 : 920,114.54 = 192,661.07 : x
  2. Step 2: Convert to fraction form
    613,385.19/920,114.54 = 192,661.07/x
  3. Step 3: Cross multiply
    613,385.19x = 920,114.54 × 192,661.07
  4. Step 4: Simplify right side
    613,385.19x = 177,270,246,957.56
  5. Step 5: Solve for x
    x = 177,270,246,957.56/613,385.19
  6. Step 6: Final answer
    x = 289,003.14

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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.