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Finding the Fourth Proportional to 606,943.72, 837,666.66 and 338,689

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Solution

The fourth proportional to 606,943.72, 837,666.66 and 338,689 is: 467,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,943.72 : 837,666.66 = 338,689 : x
  2. Step 2: Convert to fraction form
    606,943.72/837,666.66 = 338,689/x
  3. Step 3: Cross multiply
    606,943.72x = 837,666.66 × 338,689
  4. Step 4: Simplify right side
    606,943.72x = 283,708,483,408.74
  5. Step 5: Solve for x
    x = 283,708,483,408.74/606,943.72
  6. Step 6: Final answer
    x = 467,437.88

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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.