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Finding the Fourth Proportional to 486,364.86, 729,273.51 and 334,740.15

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Solution

The fourth proportional to 486,364.86, 729,273.51 and 334,740.15 is: 501,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,364.86 : 729,273.51 = 334,740.15 : x
  2. Step 2: Convert to fraction form
    486,364.86/729,273.51 = 334,740.15/x
  3. Step 3: Cross multiply
    486,364.86x = 729,273.51 × 334,740.15
  4. Step 4: Simplify right side
    486,364.86x = 244,117,124,128.43
  5. Step 5: Solve for x
    x = 244,117,124,128.43/486,364.86
  6. Step 6: Final answer
    x = 501,921.80

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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.