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Finding the Fourth Proportional to 470,157.73, 648,800.89 and 255,293.35

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Solution

The fourth proportional to 470,157.73, 648,800.89 and 255,293.35 is: 352,295.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,157.73 : 648,800.89 = 255,293.35 : x
  2. Step 2: Convert to fraction form
    470,157.73/648,800.89 = 255,293.35/x
  3. Step 3: Cross multiply
    470,157.73x = 648,800.89 × 255,293.35
  4. Step 4: Simplify right side
    470,157.73x = 165,634,552,691.08
  5. Step 5: Solve for x
    x = 165,634,552,691.08/470,157.73
  6. Step 6: Final answer
    x = 352,295.71

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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.