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Finding the Fourth Proportional to 883,367.60, 1,219,053.12 and 501,400.80

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Solution

The fourth proportional to 883,367.60, 1,219,053.12 and 501,400.80 is: 691,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,367.60 : 1,219,053.12 = 501,400.80 : x
  2. Step 2: Convert to fraction form
    883,367.60/1,219,053.12 = 501,400.80/x
  3. Step 3: Cross multiply
    883,367.60x = 1,219,053.12 × 501,400.80
  4. Step 4: Simplify right side
    883,367.60x = 611,234,209,610.50
  5. Step 5: Solve for x
    x = 611,234,209,610.50/883,367.60
  6. Step 6: Final answer
    x = 691,936.41

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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.