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Finding the Fourth Proportional to 832,504.80, 1,247,374.80 and 713,618.40

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Solution

The fourth proportional to 832,504.80, 1,247,374.80 and 713,618.40 is: 1,069,242.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,504.80 : 1,247,374.80 = 713,618.40 : x
  2. Step 2: Convert to fraction form
    832,504.80/1,247,374.80 = 713,618.40/x
  3. Step 3: Cross multiply
    832,504.80x = 1,247,374.80 × 713,618.40
  4. Step 4: Simplify right side
    832,504.80x = 890,149,608,976.32
  5. Step 5: Solve for x
    x = 890,149,608,976.32/832,504.80
  6. Step 6: Final answer
    x = 1,069,242.61

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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.