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Finding the Fourth Proportional to 619,211.94, 854,509.14 and 343,567.23

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Solution

The fourth proportional to 619,211.94, 854,509.14 and 343,567.23 is: 474,120.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,211.94 : 854,509.14 = 343,567.23 : x
  2. Step 2: Convert to fraction form
    619,211.94/854,509.14 = 343,567.23/x
  3. Step 3: Cross multiply
    619,211.94x = 854,509.14 × 343,567.23
  4. Step 4: Simplify right side
    619,211.94x = 293,581,338,239.48
  5. Step 5: Solve for x
    x = 293,581,338,239.48/619,211.94
  6. Step 6: Final answer
    x = 474,120.93

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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.