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Finding the Fourth Proportional to 621,740.69, 858,033.65 and 367,086.41

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Solution

The fourth proportional to 621,740.69, 858,033.65 and 367,086.41 is: 506,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,740.69 : 858,033.65 = 367,086.41 : x
  2. Step 2: Convert to fraction form
    621,740.69/858,033.65 = 367,086.41/x
  3. Step 3: Cross multiply
    621,740.69x = 858,033.65 × 367,086.41
  4. Step 4: Simplify right side
    621,740.69x = 314,972,490,402.26
  5. Step 5: Solve for x
    x = 314,972,490,402.26/621,740.69
  6. Step 6: Final answer
    x = 506,597.84

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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.