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Finding the Fourth Proportional to 662,530.16, 993,390.24 and 325,142.48

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Solution

The fourth proportional to 662,530.16, 993,390.24 and 325,142.48 is: 487,514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,530.16 : 993,390.24 = 325,142.48 : x
  2. Step 2: Convert to fraction form
    662,530.16/993,390.24 = 325,142.48/x
  3. Step 3: Cross multiply
    662,530.16x = 993,390.24 × 325,142.48
  4. Step 4: Simplify right side
    662,530.16x = 322,993,366,241.40
  5. Step 5: Solve for x
    x = 322,993,366,241.40/662,530.16
  6. Step 6: Final answer
    x = 487,514.96

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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.