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Finding the Fourth Proportional to 349,728.90, 524,593.35 and 343,896.90

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Solution

The fourth proportional to 349,728.90, 524,593.35 and 343,896.90 is: 515,845.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,728.90 : 524,593.35 = 343,896.90 : x
  2. Step 2: Convert to fraction form
    349,728.90/524,593.35 = 343,896.90/x
  3. Step 3: Cross multiply
    349,728.90x = 524,593.35 × 343,896.90
  4. Step 4: Simplify right side
    349,728.90x = 180,406,026,825.62
  5. Step 5: Solve for x
    x = 180,406,026,825.62/349,728.90
  6. Step 6: Final answer
    x = 515,845.35

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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.