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Finding the Fourth Proportional to 373,477.32, 515,405.70 and 203,717.52

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Solution

The fourth proportional to 373,477.32, 515,405.70 and 203,717.52 is: 281,133.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,477.32 : 515,405.70 = 203,717.52 : x
  2. Step 2: Convert to fraction form
    373,477.32/515,405.70 = 203,717.52/x
  3. Step 3: Cross multiply
    373,477.32x = 515,405.70 × 203,717.52
  4. Step 4: Simplify right side
    373,477.32x = 104,997,170,997.86
  5. Step 5: Solve for x
    x = 104,997,170,997.86/373,477.32
  6. Step 6: Final answer
    x = 281,133.99

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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.