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Finding the Fourth Proportional to 335,700.80, 503,551.20 and 307,707.20

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Solution

The fourth proportional to 335,700.80, 503,551.20 and 307,707.20 is: 461,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,700.80 : 503,551.20 = 307,707.20 : x
  2. Step 2: Convert to fraction form
    335,700.80/503,551.20 = 307,707.20/x
  3. Step 3: Cross multiply
    335,700.80x = 503,551.20 × 307,707.20
  4. Step 4: Simplify right side
    335,700.80x = 154,946,329,808.64
  5. Step 5: Solve for x
    x = 154,946,329,808.64/335,700.80
  6. Step 6: Final answer
    x = 461,560.80

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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.