Home / 1,947,686.80-2,921,530.20-1,919,693.20

Finding the Fourth Proportional to 1,947,686.80, 2,921,530.20 and 1,919,693.20

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Solution

The fourth proportional to 1,947,686.80, 2,921,530.20 and 1,919,693.20 is: 2,879,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,686.80 : 2,921,530.20 = 1,919,693.20 : x
  2. Step 2: Convert to fraction form
    1,947,686.80/2,921,530.20 = 1,919,693.20/x
  3. Step 3: Cross multiply
    1,947,686.80x = 2,921,530.20 × 1,919,693.20
  4. Step 4: Simplify right side
    1,947,686.80x = 5,608,441,658,534.64
  5. Step 5: Solve for x
    x = 5,608,441,658,534.64/1,947,686.80
  6. Step 6: Final answer
    x = 2,879,539.80

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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.