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Finding the Fourth Proportional to 480,967.32, 721,443.66 and 165,426.96

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Solution

The fourth proportional to 480,967.32, 721,443.66 and 165,426.96 is: 248,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,967.32 : 721,443.66 = 165,426.96 : x
  2. Step 2: Convert to fraction form
    480,967.32/721,443.66 = 165,426.96/x
  3. Step 3: Cross multiply
    480,967.32x = 721,443.66 × 165,426.96
  4. Step 4: Simplify right side
    480,967.32x = 119,346,231,485.07
  5. Step 5: Solve for x
    x = 119,346,231,485.07/480,967.32
  6. Step 6: Final answer
    x = 248,137.92

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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.