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Finding the Fourth Proportional to 480,219.80, 720,357.89 and 180,702.98

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Solution

The fourth proportional to 480,219.80, 720,357.89 and 180,702.98 is: 271,065.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,219.80 : 720,357.89 = 180,702.98 : x
  2. Step 2: Convert to fraction form
    480,219.80/720,357.89 = 180,702.98/x
  3. Step 3: Cross multiply
    480,219.80x = 720,357.89 × 180,702.98
  4. Step 4: Simplify right side
    480,219.80x = 130,170,812,884.21
  5. Step 5: Solve for x
    x = 130,170,812,884.21/480,219.80
  6. Step 6: Final answer
    x = 271,065.07

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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.