Home / 1,281,844.20-1,922,939.10-440,653.80

Finding the Fourth Proportional to 1,281,844.20, 1,922,939.10 and 440,653.80

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Solution

The fourth proportional to 1,281,844.20, 1,922,939.10 and 440,653.80 is: 661,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,844.20 : 1,922,939.10 = 440,653.80 : x
  2. Step 2: Convert to fraction form
    1,281,844.20/1,922,939.10 = 440,653.80/x
  3. Step 3: Cross multiply
    1,281,844.20x = 1,922,939.10 × 440,653.80
  4. Step 4: Simplify right side
    1,281,844.20x = 847,350,421,583.58
  5. Step 5: Solve for x
    x = 847,350,421,583.58/1,281,844.20
  6. Step 6: Final answer
    x = 661,040.10

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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.