Home / 969,905.16-1,338,510.50-540,185.32

Finding the Fourth Proportional to 969,905.16, 1,338,510.50 and 540,185.32

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Solution

The fourth proportional to 969,905.16, 1,338,510.50 and 540,185.32 is: 745,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,905.16 : 1,338,510.50 = 540,185.32 : x
  2. Step 2: Convert to fraction form
    969,905.16/1,338,510.50 = 540,185.32/x
  3. Step 3: Cross multiply
    969,905.16x = 1,338,510.50 × 540,185.32
  4. Step 4: Simplify right side
    969,905.16x = 723,043,722,765.86
  5. Step 5: Solve for x
    x = 723,043,722,765.86/969,905.16
  6. Step 6: Final answer
    x = 745,478.79

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Double scale
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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.