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Finding the Fourth Proportional to 555,051.72, 832,909.68 and 239,508.58

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Solution

The fourth proportional to 555,051.72, 832,909.68 and 239,508.58 is: 359,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,051.72 : 832,909.68 = 239,508.58 : x
  2. Step 2: Convert to fraction form
    555,051.72/832,909.68 = 239,508.58/x
  3. Step 3: Cross multiply
    555,051.72x = 832,909.68 × 239,508.58
  4. Step 4: Simplify right side
    555,051.72x = 199,489,014,725.05
  5. Step 5: Solve for x
    x = 199,489,014,725.05/555,051.72
  6. Step 6: Final answer
    x = 359,406.17

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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.