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Finding the Fourth Proportional to 580,209.80, 870,314.70 and 367,633.40

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Solution

The fourth proportional to 580,209.80, 870,314.70 and 367,633.40 is: 551,450.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,209.80 : 870,314.70 = 367,633.40 : x
  2. Step 2: Convert to fraction form
    580,209.80/870,314.70 = 367,633.40/x
  3. Step 3: Cross multiply
    580,209.80x = 870,314.70 × 367,633.40
  4. Step 4: Simplify right side
    580,209.80x = 319,956,752,230.98
  5. Step 5: Solve for x
    x = 319,956,752,230.98/580,209.80
  6. Step 6: Final answer
    x = 551,450.10

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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.