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Finding the Fourth Proportional to 335,686.80, 503,530.20 and 307,693.20

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Solution

The fourth proportional to 335,686.80, 503,530.20 and 307,693.20 is: 461,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,686.80 : 503,530.20 = 307,693.20 : x
  2. Step 2: Convert to fraction form
    335,686.80/503,530.20 = 307,693.20/x
  3. Step 3: Cross multiply
    335,686.80x = 503,530.20 × 307,693.20
  4. Step 4: Simplify right side
    335,686.80x = 154,932,818,534.64
  5. Step 5: Solve for x
    x = 154,932,818,534.64/335,686.80
  6. Step 6: Final answer
    x = 461,539.80

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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.