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Finding the Fourth Proportional to 613,341.21, 920,160.06 and 192,617.10

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Solution

The fourth proportional to 613,341.21, 920,160.06 and 192,617.10 is: 288,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,341.21 : 920,160.06 = 192,617.10 : x
  2. Step 2: Convert to fraction form
    613,341.21/920,160.06 = 192,617.10/x
  3. Step 3: Cross multiply
    613,341.21x = 920,160.06 × 192,617.10
  4. Step 4: Simplify right side
    613,341.21x = 177,238,562,293.03
  5. Step 5: Solve for x
    x = 177,238,562,293.03/613,341.21
  6. Step 6: Final answer
    x = 288,972.21

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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.