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Finding the Fourth Proportional to 673,834.66, 929,893.80 and 367,913.68

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Solution

The fourth proportional to 673,834.66, 929,893.80 and 367,913.68 is: 507,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,834.66 : 929,893.80 = 367,913.68 : x
  2. Step 2: Convert to fraction form
    673,834.66/929,893.80 = 367,913.68/x
  3. Step 3: Cross multiply
    673,834.66x = 929,893.80 × 367,913.68
  4. Step 4: Simplify right side
    673,834.66x = 342,120,649,967.18
  5. Step 5: Solve for x
    x = 342,120,649,967.18/673,834.66
  6. Step 6: Final answer
    x = 507,721.95

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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.