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Finding the Fourth Proportional to 556,051.50, 767,433.06 and 352,121.04

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Solution

The fourth proportional to 556,051.50, 767,433.06 and 352,121.04 is: 485,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,051.50 : 767,433.06 = 352,121.04 : x
  2. Step 2: Convert to fraction form
    556,051.50/767,433.06 = 352,121.04/x
  3. Step 3: Cross multiply
    556,051.50x = 767,433.06 × 352,121.04
  4. Step 4: Simplify right side
    556,051.50x = 270,229,327,217.58
  5. Step 5: Solve for x
    x = 270,229,327,217.58/556,051.50
  6. Step 6: Final answer
    x = 485,978.96

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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.