Home / 465,984.75-642,904.27-379,795.69

Finding the Fourth Proportional to 465,984.75, 642,904.27 and 379,795.69

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Solution

The fourth proportional to 465,984.75, 642,904.27 and 379,795.69 is: 523,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,984.75 : 642,904.27 = 379,795.69 : x
  2. Step 2: Convert to fraction form
    465,984.75/642,904.27 = 379,795.69/x
  3. Step 3: Cross multiply
    465,984.75x = 642,904.27 × 379,795.69
  4. Step 4: Simplify right side
    465,984.75x = 244,172,270,828.60
  5. Step 5: Solve for x
    x = 244,172,270,828.60/465,984.75
  6. Step 6: Final answer
    x = 523,991.98

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.