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Finding the Fourth Proportional to 619,097.76, 854,537.40 and 404,271.36

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Solution

The fourth proportional to 619,097.76, 854,537.40 and 404,271.36 is: 558,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,097.76 : 854,537.40 = 404,271.36 : x
  2. Step 2: Convert to fraction form
    619,097.76/854,537.40 = 404,271.36/x
  3. Step 3: Cross multiply
    619,097.76x = 854,537.40 × 404,271.36
  4. Step 4: Simplify right side
    619,097.76x = 345,464,996,868.86
  5. Step 5: Solve for x
    x = 345,464,996,868.86/619,097.76
  6. Step 6: Final answer
    x = 558,013.64

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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.