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Finding the Fourth Proportional to 554,543.10, 831,814.44 and 217,742.22

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Solution

The fourth proportional to 554,543.10, 831,814.44 and 217,742.22 is: 326,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,543.10 : 831,814.44 = 217,742.22 : x
  2. Step 2: Convert to fraction form
    554,543.10/831,814.44 = 217,742.22/x
  3. Step 3: Cross multiply
    554,543.10x = 831,814.44 × 217,742.22
  4. Step 4: Simplify right side
    554,543.10x = 181,121,122,793.66
  5. Step 5: Solve for x
    x = 181,121,122,793.66/554,543.10
  6. Step 6: Final answer
    x = 326,613.25

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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.