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Finding the Fourth Proportional to 639,740.01, 882,841.73 and 410,296.59

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Solution

The fourth proportional to 639,740.01, 882,841.73 and 410,296.59 is: 566,209.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,740.01 : 882,841.73 = 410,296.59 : x
  2. Step 2: Convert to fraction form
    639,740.01/882,841.73 = 410,296.59/x
  3. Step 3: Cross multiply
    639,740.01x = 882,841.73 × 410,296.59
  4. Step 4: Simplify right side
    639,740.01x = 362,226,951,328.70
  5. Step 5: Solve for x
    x = 362,226,951,328.70/639,740.01
  6. Step 6: Final answer
    x = 566,209.63

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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.