Home / 969,928.16-1,338,542.40-540,208.40

Finding the Fourth Proportional to 969,928.16, 1,338,542.40 and 540,208.40

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Solution

The fourth proportional to 969,928.16, 1,338,542.40 and 540,208.40 is: 745,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,928.16 : 1,338,542.40 = 540,208.40 : x
  2. Step 2: Convert to fraction form
    969,928.16/1,338,542.40 = 540,208.40/x
  3. Step 3: Cross multiply
    969,928.16x = 1,338,542.40 × 540,208.40
  4. Step 4: Simplify right side
    969,928.16x = 723,091,848,236.16
  5. Step 5: Solve for x
    x = 723,091,848,236.16/969,928.16
  6. Step 6: Final answer
    x = 745,510.73

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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.