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Finding the Fourth Proportional to 354,023.36, 488,555.90 and 192,878.36

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Solution

The fourth proportional to 354,023.36, 488,555.90 and 192,878.36 is: 266,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,023.36 : 488,555.90 = 192,878.36 : x
  2. Step 2: Convert to fraction form
    354,023.36/488,555.90 = 192,878.36/x
  3. Step 3: Cross multiply
    354,023.36x = 488,555.90 × 192,878.36
  4. Step 4: Simplify right side
    354,023.36x = 94,231,863,741.60
  5. Step 5: Solve for x
    x = 94,231,863,741.60/354,023.36
  6. Step 6: Final answer
    x = 266,174.14

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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.