Home / 1,909,621.80-2,864,432.70-1,881,628.20

Finding the Fourth Proportional to 1,909,621.80, 2,864,432.70 and 1,881,628.20

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Solution

The fourth proportional to 1,909,621.80, 2,864,432.70 and 1,881,628.20 is: 2,822,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,621.80 : 2,864,432.70 = 1,881,628.20 : x
  2. Step 2: Convert to fraction form
    1,909,621.80/2,864,432.70 = 1,881,628.20/x
  3. Step 3: Cross multiply
    1,909,621.80x = 2,864,432.70 × 1,881,628.20
  4. Step 4: Simplify right side
    1,909,621.80x = 5,389,797,345,322.14
  5. Step 5: Solve for x
    x = 5,389,797,345,322.14/1,909,621.80
  6. Step 6: Final answer
    x = 2,822,442.30

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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.