Home / 986,390.48-1,361,219.40-684,759.44

Finding the Fourth Proportional to 986,390.48, 1,361,219.40 and 684,759.44

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Solution

The fourth proportional to 986,390.48, 1,361,219.40 and 684,759.44 is: 944,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,390.48 : 1,361,219.40 = 684,759.44 : x
  2. Step 2: Convert to fraction form
    986,390.48/1,361,219.40 = 684,759.44/x
  3. Step 3: Cross multiply
    986,390.48x = 1,361,219.40 × 684,759.44
  4. Step 4: Simplify right side
    986,390.48x = 932,107,834,061.14
  5. Step 5: Solve for x
    x = 932,107,834,061.14/986,390.48
  6. Step 6: Final answer
    x = 944,968.40

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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.