Home / 1,212,001.40-1,818,002.10-414,183.80

Finding the Fourth Proportional to 1,212,001.40, 1,818,002.10 and 414,183.80

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Solution

The fourth proportional to 1,212,001.40, 1,818,002.10 and 414,183.80 is: 621,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,001.40 : 1,818,002.10 = 414,183.80 : x
  2. Step 2: Convert to fraction form
    1,212,001.40/1,818,002.10 = 414,183.80/x
  3. Step 3: Cross multiply
    1,212,001.40x = 1,818,002.10 × 414,183.80
  4. Step 4: Simplify right side
    1,212,001.40x = 752,987,018,185.98
  5. Step 5: Solve for x
    x = 752,987,018,185.98/1,212,001.40
  6. Step 6: Final answer
    x = 621,275.70

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1.5x scale

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.