Home / 658,904.49-909,334.55-372,426.73

Finding the Fourth Proportional to 658,904.49, 909,334.55 and 372,426.73

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Solution

The fourth proportional to 658,904.49, 909,334.55 and 372,426.73 is: 513,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,904.49 : 909,334.55 = 372,426.73 : x
  2. Step 2: Convert to fraction form
    658,904.49/909,334.55 = 372,426.73/x
  3. Step 3: Cross multiply
    658,904.49x = 909,334.55 × 372,426.73
  4. Step 4: Simplify right side
    658,904.49x = 338,660,491,590.25
  5. Step 5: Solve for x
    x = 338,660,491,590.25/658,904.49
  6. Step 6: Final answer
    x = 513,975.09

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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.