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Finding the Fourth Proportional to 443,395.67, 611,916.89 and 252,409.01

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Solution

The fourth proportional to 443,395.67, 611,916.89 and 252,409.01 is: 348,342.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,395.67 : 611,916.89 = 252,409.01 : x
  2. Step 2: Convert to fraction form
    443,395.67/611,916.89 = 252,409.01/x
  3. Step 3: Cross multiply
    443,395.67x = 611,916.89 × 252,409.01
  4. Step 4: Simplify right side
    443,395.67x = 154,453,332,085.55
  5. Step 5: Solve for x
    x = 154,453,332,085.55/443,395.67
  6. Step 6: Final answer
    x = 348,342.00

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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.