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Finding the Fourth Proportional to 319,389.16, 440,783.52 and 183,449.34

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Solution

The fourth proportional to 319,389.16, 440,783.52 and 183,449.34 is: 253,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,389.16 : 440,783.52 = 183,449.34 : x
  2. Step 2: Convert to fraction form
    319,389.16/440,783.52 = 183,449.34/x
  3. Step 3: Cross multiply
    319,389.16x = 440,783.52 × 183,449.34
  4. Step 4: Simplify right side
    319,389.16x = 80,861,446,170.84
  5. Step 5: Solve for x
    x = 80,861,446,170.84/319,389.16
  6. Step 6: Final answer
    x = 253,175.30

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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.