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Finding the Fourth Proportional to 449,567.58, 671,071.91 and 392,815.94

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Solution

The fourth proportional to 449,567.58, 671,071.91 and 392,815.94 is: 586,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,567.58 : 671,071.91 = 392,815.94 : x
  2. Step 2: Convert to fraction form
    449,567.58/671,071.91 = 392,815.94/x
  3. Step 3: Cross multiply
    449,567.58x = 671,071.91 × 392,815.94
  4. Step 4: Simplify right side
    449,567.58x = 263,607,743,134.25
  5. Step 5: Solve for x
    x = 263,607,743,134.25/449,567.58
  6. Step 6: Final answer
    x = 586,358.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.