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Finding the Fourth Proportional to 423,284.66, 635,023.98 and 183,438.83

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Solution

The fourth proportional to 423,284.66, 635,023.98 and 183,438.83 is: 275,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,284.66 : 635,023.98 = 183,438.83 : x
  2. Step 2: Convert to fraction form
    423,284.66/635,023.98 = 183,438.83/x
  3. Step 3: Cross multiply
    423,284.66x = 635,023.98 × 183,438.83
  4. Step 4: Simplify right side
    423,284.66x = 116,488,051,820.83
  5. Step 5: Solve for x
    x = 116,488,051,820.83/423,284.66
  6. Step 6: Final answer
    x = 275,200.27

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Why These Related Problems?

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