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Finding the Fourth Proportional to 684,693.06, 944,558.04 and 443,053.72

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Solution

The fourth proportional to 684,693.06, 944,558.04 and 443,053.72 is: 611,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,693.06 : 944,558.04 = 443,053.72 : x
  2. Step 2: Convert to fraction form
    684,693.06/944,558.04 = 443,053.72/x
  3. Step 3: Cross multiply
    684,693.06x = 944,558.04 × 443,053.72
  4. Step 4: Simplify right side
    684,693.06x = 418,489,953,377.91
  5. Step 5: Solve for x
    x = 418,489,953,377.91/684,693.06
  6. Step 6: Final answer
    x = 611,208.11

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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.