Home / 1,085,555.20-1,628,041.20-454,338.40

Finding the Fourth Proportional to 1,085,555.20, 1,628,041.20 and 454,338.40

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Solution

The fourth proportional to 1,085,555.20, 1,628,041.20 and 454,338.40 is: 681,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,555.20 : 1,628,041.20 = 454,338.40 : x
  2. Step 2: Convert to fraction form
    1,085,555.20/1,628,041.20 = 454,338.40/x
  3. Step 3: Cross multiply
    1,085,555.20x = 1,628,041.20 × 454,338.40
  4. Step 4: Simplify right side
    1,085,555.20x = 739,681,633,942.08
  5. Step 5: Solve for x
    x = 739,681,633,942.08/1,085,555.20
  6. Step 6: Final answer
    x = 681,385.56

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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.