Home / 411,193.23-567,274.76-320,391.55

Finding the Fourth Proportional to 411,193.23, 567,274.76 and 320,391.55

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Solution

The fourth proportional to 411,193.23, 567,274.76 and 320,391.55 is: 442,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,193.23 : 567,274.76 = 320,391.55 : x
  2. Step 2: Convert to fraction form
    411,193.23/567,274.76 = 320,391.55/x
  3. Step 3: Cross multiply
    411,193.23x = 567,274.76 × 320,391.55
  4. Step 4: Simplify right side
    411,193.23x = 181,750,039,632.28
  5. Step 5: Solve for x
    x = 181,750,039,632.28/411,193.23
  6. Step 6: Final answer
    x = 442,006.40

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Half scale
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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.