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Finding the Fourth Proportional to 354,203.10, 488,795.97 and 193,057.65

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Solution

The fourth proportional to 354,203.10, 488,795.97 and 193,057.65 is: 266,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,203.10 : 488,795.97 = 193,057.65 : x
  2. Step 2: Convert to fraction form
    354,203.10/488,795.97 = 193,057.65/x
  3. Step 3: Cross multiply
    354,203.10x = 488,795.97 × 193,057.65
  4. Step 4: Simplify right side
    354,203.10x = 94,365,801,297.67
  5. Step 5: Solve for x
    x = 94,365,801,297.67/354,203.10
  6. Step 6: Final answer
    x = 266,417.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.