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Finding the Fourth Proportional to 508,103.36, 761,028.96 and 347,796.80

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Solution

The fourth proportional to 508,103.36, 761,028.96 and 347,796.80 is: 520,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,103.36 : 761,028.96 = 347,796.80 : x
  2. Step 2: Convert to fraction form
    508,103.36/761,028.96 = 347,796.80/x
  3. Step 3: Cross multiply
    508,103.36x = 761,028.96 × 347,796.80
  4. Step 4: Simplify right side
    508,103.36x = 264,683,436,995.33
  5. Step 5: Solve for x
    x = 264,683,436,995.33/508,103.36
  6. Step 6: Final answer
    x = 520,924.40

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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.