Home / 783,308.76-1,174,772.39-327,653.69

Finding the Fourth Proportional to 783,308.76, 1,174,772.39 and 327,653.69

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Solution

The fourth proportional to 783,308.76, 1,174,772.39 and 327,653.69 is: 491,400.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,308.76 : 1,174,772.39 = 327,653.69 : x
  2. Step 2: Convert to fraction form
    783,308.76/1,174,772.39 = 327,653.69/x
  3. Step 3: Cross multiply
    783,308.76x = 1,174,772.39 × 327,653.69
  4. Step 4: Simplify right side
    783,308.76x = 384,918,500,981.49
  5. Step 5: Solve for x
    x = 384,918,500,981.49/783,308.76
  6. Step 6: Final answer
    x = 491,400.74

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Half scale
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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.