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Finding the Fourth Proportional to 478,484.16, 717,512.94 and 253,793.46

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Solution

The fourth proportional to 478,484.16, 717,512.94 and 253,793.46 is: 380,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,484.16 : 717,512.94 = 253,793.46 : x
  2. Step 2: Convert to fraction form
    478,484.16/717,512.94 = 253,793.46/x
  3. Step 3: Cross multiply
    478,484.16x = 717,512.94 × 253,793.46
  4. Step 4: Simplify right side
    478,484.16x = 182,100,091,637.37
  5. Step 5: Solve for x
    x = 182,100,091,637.37/478,484.16
  6. Step 6: Final answer
    x = 380,577.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.