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Finding the Fourth Proportional to 590,121.20, 884,015.40 and 323,404.40

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Solution

The fourth proportional to 590,121.20, 884,015.40 and 323,404.40 is: 484,467.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,121.20 : 884,015.40 = 323,404.40 : x
  2. Step 2: Convert to fraction form
    590,121.20/884,015.40 = 323,404.40/x
  3. Step 3: Cross multiply
    590,121.20x = 884,015.40 × 323,404.40
  4. Step 4: Simplify right side
    590,121.20x = 285,894,470,027.76
  5. Step 5: Solve for x
    x = 285,894,470,027.76/590,121.20
  6. Step 6: Final answer
    x = 484,467.38

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1.5x scale

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.