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Finding the Fourth Proportional to 662,508.51, 914,830.09 and 641,084.79

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Solution

The fourth proportional to 662,508.51, 914,830.09 and 641,084.79 is: 885,246.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,508.51 : 914,830.09 = 641,084.79 : x
  2. Step 2: Convert to fraction form
    662,508.51/914,830.09 = 641,084.79/x
  3. Step 3: Cross multiply
    662,508.51x = 914,830.09 × 641,084.79
  4. Step 4: Simplify right side
    662,508.51x = 586,483,657,109.06
  5. Step 5: Solve for x
    x = 586,483,657,109.06/662,508.51
  6. Step 6: Final answer
    x = 885,246.98

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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.