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Finding the Fourth Proportional to 333,917.78, 460,876.16 and 307,017.68

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Solution

The fourth proportional to 333,917.78, 460,876.16 and 307,017.68 is: 423,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,917.78 : 460,876.16 = 307,017.68 : x
  2. Step 2: Convert to fraction form
    333,917.78/460,876.16 = 307,017.68/x
  3. Step 3: Cross multiply
    333,917.78x = 460,876.16 × 307,017.68
  4. Step 4: Simplify right side
    333,917.78x = 141,497,127,873.67
  5. Step 5: Solve for x
    x = 141,497,127,873.67/333,917.78
  6. Step 6: Final answer
    x = 423,748.41

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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.