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Finding the Fourth Proportional to 470,001.71, 648,603.15 and 255,141.92

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Solution

The fourth proportional to 470,001.71, 648,603.15 and 255,141.92 is: 352,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,001.71 : 648,603.15 = 255,141.92 : x
  2. Step 2: Convert to fraction form
    470,001.71/648,603.15 = 255,141.92/x
  3. Step 3: Cross multiply
    470,001.71x = 648,603.15 × 255,141.92
  4. Step 4: Simplify right side
    470,001.71x = 165,485,853,009.05
  5. Step 5: Solve for x
    x = 165,485,853,009.05/470,001.71
  6. Step 6: Final answer
    x = 352,096.28

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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.