Home / 778,868.40-1,168,170.12-217,772.40

Finding the Fourth Proportional to 778,868.40, 1,168,170.12 and 217,772.40

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Solution

The fourth proportional to 778,868.40, 1,168,170.12 and 217,772.40 is: 326,621.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,868.40 : 1,168,170.12 = 217,772.40 : x
  2. Step 2: Convert to fraction form
    778,868.40/1,168,170.12 = 217,772.40/x
  3. Step 3: Cross multiply
    778,868.40x = 1,168,170.12 × 217,772.40
  4. Step 4: Simplify right side
    778,868.40x = 254,395,210,640.69
  5. Step 5: Solve for x
    x = 254,395,210,640.69/778,868.40
  6. Step 6: Final answer
    x = 326,621.56

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Double scale
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Similar ratio
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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.