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Finding the Fourth Proportional to 486,051.80, 729,077.70 and 367,953.80

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Solution

The fourth proportional to 486,051.80, 729,077.70 and 367,953.80 is: 551,930.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,051.80 : 729,077.70 = 367,953.80 : x
  2. Step 2: Convert to fraction form
    486,051.80/729,077.70 = 367,953.80/x
  3. Step 3: Cross multiply
    486,051.80x = 729,077.70 × 367,953.80
  4. Step 4: Simplify right side
    486,051.80x = 268,266,910,210.26
  5. Step 5: Solve for x
    x = 268,266,910,210.26/486,051.80
  6. Step 6: Final answer
    x = 551,930.70

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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.