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Finding the Fourth Proportional to 347,611.04, 479,703.20 and 188,635.04

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Solution

The fourth proportional to 347,611.04, 479,703.20 and 188,635.04 is: 260,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,611.04 : 479,703.20 = 188,635.04 : x
  2. Step 2: Convert to fraction form
    347,611.04/479,703.20 = 188,635.04/x
  3. Step 3: Cross multiply
    347,611.04x = 479,703.20 × 188,635.04
  4. Step 4: Simplify right side
    347,611.04x = 90,488,832,320.13
  5. Step 5: Solve for x
    x = 90,488,832,320.13/347,611.04
  6. Step 6: Final answer
    x = 260,316.34

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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.