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Finding the Fourth Proportional to 493,686.80, 740,530.20 and 493,686.80

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Solution

The fourth proportional to 493,686.80, 740,530.20 and 493,686.80 is: 740,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,686.80 : 740,530.20 = 493,686.80 : x
  2. Step 2: Convert to fraction form
    493,686.80/740,530.20 = 493,686.80/x
  3. Step 3: Cross multiply
    493,686.80x = 740,530.20 × 493,686.80
  4. Step 4: Simplify right side
    493,686.80x = 365,589,984,741.36
  5. Step 5: Solve for x
    x = 365,589,984,741.36/493,686.80
  6. Step 6: Final answer
    x = 740,530.20

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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.