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Finding the Fourth Proportional to 676,009.65, 932,828.56 and 404,023.40

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Solution

The fourth proportional to 676,009.65, 932,828.56 and 404,023.40 is: 557,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,009.65 : 932,828.56 = 404,023.40 : x
  2. Step 2: Convert to fraction form
    676,009.65/932,828.56 = 404,023.40/x
  3. Step 3: Cross multiply
    676,009.65x = 932,828.56 × 404,023.40
  4. Step 4: Simplify right side
    676,009.65x = 376,884,560,754.10
  5. Step 5: Solve for x
    x = 376,884,560,754.10/676,009.65
  6. Step 6: Final answer
    x = 557,513.58

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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.