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Finding the Fourth Proportional to 3,158,959.22, 4,738,434.99 and 1,029,039.86

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Solution

The fourth proportional to 3,158,959.22, 4,738,434.99 and 1,029,039.86 is: 1,543,558.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158,959.22 : 4,738,434.99 = 1,029,039.86 : x
  2. Step 2: Convert to fraction form
    3,158,959.22/4,738,434.99 = 1,029,039.86/x
  3. Step 3: Cross multiply
    3,158,959.22x = 4,738,434.99 × 1,029,039.86
  4. Step 4: Simplify right side
    3,158,959.22x = 4,876,038,478,728.70
  5. Step 5: Solve for x
    x = 4,876,038,478,728.70/3,158,959.22
  6. Step 6: Final answer
    x = 1,543,558.54

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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.