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Finding the Fourth Proportional to 470,584.20, 705,098.70 and 400,600.20

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Solution

The fourth proportional to 470,584.20, 705,098.70 and 400,600.20 is: 600,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,584.20 : 705,098.70 = 400,600.20 : x
  2. Step 2: Convert to fraction form
    470,584.20/705,098.70 = 400,600.20/x
  3. Step 3: Cross multiply
    470,584.20x = 705,098.70 × 400,600.20
  4. Step 4: Simplify right side
    470,584.20x = 282,462,680,239.74
  5. Step 5: Solve for x
    x = 282,462,680,239.74/470,584.20
  6. Step 6: Final answer
    x = 600,238.34

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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.