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Finding the Fourth Proportional to 684,062.69, 943,776.36 and 442,650.69

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Solution

The fourth proportional to 684,062.69, 943,776.36 and 442,650.69 is: 610,709.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,062.69 : 943,776.36 = 442,650.69 : x
  2. Step 2: Convert to fraction form
    684,062.69/943,776.36 = 442,650.69/x
  3. Step 3: Cross multiply
    684,062.69x = 943,776.36 × 442,650.69
  4. Step 4: Simplify right side
    684,062.69x = 417,763,256,959.69
  5. Step 5: Solve for x
    x = 417,763,256,959.69/684,062.69
  6. Step 6: Final answer
    x = 610,709.03

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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.