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Finding the Fourth Proportional to 382,168.72, 526,188.18 and 346,739.32

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Solution

The fourth proportional to 382,168.72, 526,188.18 and 346,739.32 is: 477,407.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,168.72 : 526,188.18 = 346,739.32 : x
  2. Step 2: Convert to fraction form
    382,168.72/526,188.18 = 346,739.32/x
  3. Step 3: Cross multiply
    382,168.72x = 526,188.18 × 346,739.32
  4. Step 4: Simplify right side
    382,168.72x = 182,450,131,725.24
  5. Step 5: Solve for x
    x = 182,450,131,725.24/382,168.72
  6. Step 6: Final answer
    x = 477,407.29

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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.