Home / 659,020.86-909,082.79-383,347.66

Finding the Fourth Proportional to 659,020.86, 909,082.79 and 383,347.66

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Solution

The fourth proportional to 659,020.86, 909,082.79 and 383,347.66 is: 528,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,020.86 : 909,082.79 = 383,347.66 : x
  2. Step 2: Convert to fraction form
    659,020.86/909,082.79 = 383,347.66/x
  3. Step 3: Cross multiply
    659,020.86x = 909,082.79 × 383,347.66
  4. Step 4: Simplify right side
    659,020.86x = 348,494,763,958.54
  5. Step 5: Solve for x
    x = 348,494,763,958.54/659,020.86
  6. Step 6: Final answer
    x = 528,806.88

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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.