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Finding the Fourth Proportional to 543,886.60, 815,829.90 and 417,769.60

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Solution

The fourth proportional to 543,886.60, 815,829.90 and 417,769.60 is: 626,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,886.60 : 815,829.90 = 417,769.60 : x
  2. Step 2: Convert to fraction form
    543,886.60/815,829.90 = 417,769.60/x
  3. Step 3: Cross multiply
    543,886.60x = 815,829.90 × 417,769.60
  4. Step 4: Simplify right side
    543,886.60x = 340,828,930,991.04
  5. Step 5: Solve for x
    x = 340,828,930,991.04/543,886.60
  6. Step 6: Final answer
    x = 626,654.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.