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Finding the Fourth Proportional to 673,726.55, 929,756.70 and 367,815.81

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Solution

The fourth proportional to 673,726.55, 929,756.70 and 367,815.81 is: 507,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,726.55 : 929,756.70 = 367,815.81 : x
  2. Step 2: Convert to fraction form
    673,726.55/929,756.70 = 367,815.81/x
  3. Step 3: Cross multiply
    673,726.55x = 929,756.70 × 367,815.81
  4. Step 4: Simplify right side
    673,726.55x = 341,979,213,713.43
  5. Step 5: Solve for x
    x = 341,979,213,713.43/673,726.55
  6. Step 6: Final answer
    x = 507,593.50

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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.