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Finding the Fourth Proportional to 603,041.09, 832,208.61 and 331,106.61

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Solution

The fourth proportional to 603,041.09, 832,208.61 and 331,106.61 is: 456,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,041.09 : 832,208.61 = 331,106.61 : x
  2. Step 2: Convert to fraction form
    603,041.09/832,208.61 = 331,106.61/x
  3. Step 3: Cross multiply
    603,041.09x = 832,208.61 × 331,106.61
  4. Step 4: Simplify right side
    603,041.09x = 275,549,772,727.91
  5. Step 5: Solve for x
    x = 275,549,772,727.91/603,041.09
  6. Step 6: Final answer
    x = 456,933.66

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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.