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Finding the Fourth Proportional to 673,612.15, 929,607.28 and 367,706.66

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Solution

The fourth proportional to 673,612.15, 929,607.28 and 367,706.66 is: 507,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,612.15 : 929,607.28 = 367,706.66 : x
  2. Step 2: Convert to fraction form
    673,612.15/929,607.28 = 367,706.66/x
  3. Step 3: Cross multiply
    673,612.15x = 929,607.28 × 367,706.66
  4. Step 4: Simplify right side
    673,612.15x = 341,822,786,201.95
  5. Step 5: Solve for x
    x = 341,822,786,201.95/673,612.15
  6. Step 6: Final answer
    x = 507,447.48

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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.