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Finding the Fourth Proportional to 476,218.38, 714,344.04 and 239,431.98

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Solution

The fourth proportional to 476,218.38, 714,344.04 and 239,431.98 is: 359,156.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,218.38 : 714,344.04 = 239,431.98 : x
  2. Step 2: Convert to fraction form
    476,218.38/714,344.04 = 239,431.98/x
  3. Step 3: Cross multiply
    476,218.38x = 714,344.04 × 239,431.98
  4. Step 4: Simplify right side
    476,218.38x = 171,036,807,898.40
  5. Step 5: Solve for x
    x = 171,036,807,898.40/476,218.38
  6. Step 6: Final answer
    x = 359,156.25

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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.