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Finding the Fourth Proportional to 443,143.86, 611,535.36 and 241,939.86

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Solution

The fourth proportional to 443,143.86, 611,535.36 and 241,939.86 is: 333,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,143.86 : 611,535.36 = 241,939.86 : x
  2. Step 2: Convert to fraction form
    443,143.86/611,535.36 = 241,939.86/x
  3. Step 3: Cross multiply
    443,143.86x = 611,535.36 × 241,939.86
  4. Step 4: Simplify right side
    443,143.86x = 147,954,779,383.45
  5. Step 5: Solve for x
    x = 147,954,779,383.45/443,143.86
  6. Step 6: Final answer
    x = 333,875.28

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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.