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Finding the Fourth Proportional to 480,016.80, 720,025.20 and 471,722.40

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Solution

The fourth proportional to 480,016.80, 720,025.20 and 471,722.40 is: 707,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,016.80 : 720,025.20 = 471,722.40 : x
  2. Step 2: Convert to fraction form
    480,016.80/720,025.20 = 471,722.40/x
  3. Step 3: Cross multiply
    480,016.80x = 720,025.20 × 471,722.40
  4. Step 4: Simplify right side
    480,016.80x = 339,652,015,404.48
  5. Step 5: Solve for x
    x = 339,652,015,404.48/480,016.80
  6. Step 6: Final answer
    x = 707,583.60

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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.