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Finding the Fourth Proportional to 358,055.55, 494,106.79 and 196,910.58

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Solution

The fourth proportional to 358,055.55, 494,106.79 and 196,910.58 is: 271,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,055.55 : 494,106.79 = 196,910.58 : x
  2. Step 2: Convert to fraction form
    358,055.55/494,106.79 = 196,910.58/x
  3. Step 3: Cross multiply
    358,055.55x = 494,106.79 × 196,910.58
  4. Step 4: Simplify right side
    358,055.55x = 97,294,854,105.13
  5. Step 5: Solve for x
    x = 97,294,854,105.13/358,055.55
  6. Step 6: Final answer
    x = 271,731.17

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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.