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Finding the Fourth Proportional to 883,719.19, 1,324,343.03 and 478,035.55

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Solution

The fourth proportional to 883,719.19, 1,324,343.03 and 478,035.55 is: 716,384.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,719.19 : 1,324,343.03 = 478,035.55 : x
  2. Step 2: Convert to fraction form
    883,719.19/1,324,343.03 = 478,035.55/x
  3. Step 3: Cross multiply
    883,719.19x = 1,324,343.03 × 478,035.55
  4. Step 4: Simplify right side
    883,719.19x = 633,083,043,033.68
  5. Step 5: Solve for x
    x = 633,083,043,033.68/883,719.19
  6. Step 6: Final answer
    x = 716,384.86

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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.