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Finding the Fourth Proportional to 986,871.60, 1,480,998.60 and 632,746.80

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Solution

The fourth proportional to 986,871.60, 1,480,998.60 and 632,746.80 is: 949,563.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,871.60 : 1,480,998.60 = 632,746.80 : x
  2. Step 2: Convert to fraction form
    986,871.60/1,480,998.60 = 632,746.80/x
  3. Step 3: Cross multiply
    986,871.60x = 1,480,998.60 × 632,746.80
  4. Step 4: Simplify right side
    986,871.60x = 937,097,124,954.48
  5. Step 5: Solve for x
    x = 937,097,124,954.48/986,871.60
  6. Step 6: Final answer
    x = 949,563.37

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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.