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Finding the Fourth Proportional to 889,636.71, 1,334,861.71 and 484,221.59

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Solution

The fourth proportional to 889,636.71, 1,334,861.71 and 484,221.59 is: 726,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,636.71 : 1,334,861.71 = 484,221.59 : x
  2. Step 2: Convert to fraction form
    889,636.71/1,334,861.71 = 484,221.59/x
  3. Step 3: Cross multiply
    889,636.71x = 1,334,861.71 × 484,221.59
  4. Step 4: Simplify right side
    889,636.71x = 646,368,855,055.68
  5. Step 5: Solve for x
    x = 646,368,855,055.68/889,636.71
  6. Step 6: Final answer
    x = 726,553.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.