Home / 1,658,435.76-2,487,645.18-647,660.34

Finding the Fourth Proportional to 1,658,435.76, 2,487,645.18 and 647,660.34

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Solution

The fourth proportional to 1,658,435.76, 2,487,645.18 and 647,660.34 is: 971,487.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658,435.76 : 2,487,645.18 = 647,660.34 : x
  2. Step 2: Convert to fraction form
    1,658,435.76/2,487,645.18 = 647,660.34/x
  3. Step 3: Cross multiply
    1,658,435.76x = 2,487,645.18 × 647,660.34
  4. Step 4: Simplify right side
    1,658,435.76x = 1,611,149,123,078.16
  5. Step 5: Solve for x
    x = 1,611,149,123,078.16/1,658,435.76
  6. Step 6: Final answer
    x = 971,487.21

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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.