Home / 2,189,908.40-3,020,338.68-1,330,444.40

Finding the Fourth Proportional to 2,189,908.40, 3,020,338.68 and 1,330,444.40

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Solution

The fourth proportional to 2,189,908.40, 3,020,338.68 and 1,330,444.40 is: 1,834,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,908.40 : 3,020,338.68 = 1,330,444.40 : x
  2. Step 2: Convert to fraction form
    2,189,908.40/3,020,338.68 = 1,330,444.40/x
  3. Step 3: Cross multiply
    2,189,908.40x = 3,020,338.68 × 1,330,444.40
  4. Step 4: Simplify right side
    2,189,908.40x = 4,018,392,682,909.39
  5. Step 5: Solve for x
    x = 4,018,392,682,909.39/2,189,908.40
  6. Step 6: Final answer
    x = 1,834,959.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.