Home / 1,679,909.40-2,520,192.15-668,859.30

Finding the Fourth Proportional to 1,679,909.40, 2,520,192.15 and 668,859.30

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Solution

The fourth proportional to 1,679,909.40, 2,520,192.15 and 668,859.30 is: 1,003,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,909.40 : 2,520,192.15 = 668,859.30 : x
  2. Step 2: Convert to fraction form
    1,679,909.40/2,520,192.15 = 668,859.30/x
  3. Step 3: Cross multiply
    1,679,909.40x = 2,520,192.15 × 668,859.30
  4. Step 4: Simplify right side
    1,679,909.40x = 1,685,653,957,314.50
  5. Step 5: Solve for x
    x = 1,685,653,957,314.50/1,679,909.40
  6. Step 6: Final answer
    x = 1,003,419.56

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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.