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Finding the Fourth Proportional to 909,672.80, 1,361,884.80 and 883,428.80

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Solution

The fourth proportional to 909,672.80, 1,361,884.80 and 883,428.80 is: 1,322,594.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,672.80 : 1,361,884.80 = 883,428.80 : x
  2. Step 2: Convert to fraction form
    909,672.80/1,361,884.80 = 883,428.80/x
  3. Step 3: Cross multiply
    909,672.80x = 1,361,884.80 × 883,428.80
  4. Step 4: Simplify right side
    909,672.80x = 1,203,128,254,602.24
  5. Step 5: Solve for x
    x = 1,203,128,254,602.24/909,672.80
  6. Step 6: Final answer
    x = 1,322,594.51

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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.