Home / 986,709.47-1,361,620.64-619,384.19

Finding the Fourth Proportional to 986,709.47, 1,361,620.64 and 619,384.19

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Solution

The fourth proportional to 986,709.47, 1,361,620.64 and 619,384.19 is: 854,726.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,709.47 : 1,361,620.64 = 619,384.19 : x
  2. Step 2: Convert to fraction form
    986,709.47/1,361,620.64 = 619,384.19/x
  3. Step 3: Cross multiply
    986,709.47x = 1,361,620.64 × 619,384.19
  4. Step 4: Simplify right side
    986,709.47x = 843,366,294,096.76
  5. Step 5: Solve for x
    x = 843,366,294,096.76/986,709.47
  6. Step 6: Final answer
    x = 854,726.06

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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.