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Finding the Fourth Proportional to 684,672.57, 944,529.78 and 443,033.19

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Solution

The fourth proportional to 684,672.57, 944,529.78 and 443,033.19 is: 611,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,672.57 : 944,529.78 = 443,033.19 : x
  2. Step 2: Convert to fraction form
    684,672.57/944,529.78 = 443,033.19/x
  3. Step 3: Cross multiply
    684,672.57x = 944,529.78 × 443,033.19
  4. Step 4: Simplify right side
    684,672.57x = 418,458,041,483.40
  5. Step 5: Solve for x
    x = 418,458,041,483.40/684,672.57
  6. Step 6: Final answer
    x = 611,179.80

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1.5x scale

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.