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Finding the Fourth Proportional to 707,999.20, 1,060,249.20 and 470,053.60

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Solution

The fourth proportional to 707,999.20, 1,060,249.20 and 470,053.60 is: 703,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,999.20 : 1,060,249.20 = 470,053.60 : x
  2. Step 2: Convert to fraction form
    707,999.20/1,060,249.20 = 470,053.60/x
  3. Step 3: Cross multiply
    707,999.20x = 1,060,249.20 × 470,053.60
  4. Step 4: Simplify right side
    707,999.20x = 498,373,953,357.12
  5. Step 5: Solve for x
    x = 498,373,953,357.12/707,999.20
  6. Step 6: Final answer
    x = 703,918.81

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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.