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Finding the Fourth Proportional to 470,488.88, 649,280.55 and 255,632.54

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Solution

The fourth proportional to 470,488.88, 649,280.55 and 255,632.54 is: 352,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,488.88 : 649,280.55 = 255,632.54 : x
  2. Step 2: Convert to fraction form
    470,488.88/649,280.55 = 255,632.54/x
  3. Step 3: Cross multiply
    470,488.88x = 649,280.55 × 255,632.54
  4. Step 4: Simplify right side
    470,488.88x = 165,977,232,922.69
  5. Step 5: Solve for x
    x = 165,977,232,922.69/470,488.88
  6. Step 6: Final answer
    x = 352,776.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.