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Finding the Fourth Proportional to 673,348.68, 929,215.80 and 367,418.16

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Solution

The fourth proportional to 673,348.68, 929,215.80 and 367,418.16 is: 507,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,348.68 : 929,215.80 = 367,418.16 : x
  2. Step 2: Convert to fraction form
    673,348.68/929,215.80 = 367,418.16/x
  3. Step 3: Cross multiply
    673,348.68x = 929,215.80 × 367,418.16
  4. Step 4: Simplify right side
    673,348.68x = 341,410,759,478.93
  5. Step 5: Solve for x
    x = 341,410,759,478.93/673,348.68
  6. Step 6: Final answer
    x = 507,034.13

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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.