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Finding the Fourth Proportional to 319,176.50, 440,503.45 and 183,253.03

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Solution

The fourth proportional to 319,176.50, 440,503.45 and 183,253.03 is: 252,912.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,176.50 : 440,503.45 = 183,253.03 : x
  2. Step 2: Convert to fraction form
    319,176.50/440,503.45 = 183,253.03/x
  3. Step 3: Cross multiply
    319,176.50x = 440,503.45 × 183,253.03
  4. Step 4: Simplify right side
    319,176.50x = 80,723,590,378.56
  5. Step 5: Solve for x
    x = 80,723,590,378.56/319,176.50
  6. Step 6: Final answer
    x = 252,912.08

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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.