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Finding the Fourth Proportional to 454,116.50, 626,700.21 and 252,912.50

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Solution

The fourth proportional to 454,116.50, 626,700.21 and 252,912.50 is: 349,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,116.50 : 626,700.21 = 252,912.50 : x
  2. Step 2: Convert to fraction form
    454,116.50/626,700.21 = 252,912.50/x
  3. Step 3: Cross multiply
    454,116.50x = 626,700.21 × 252,912.50
  4. Step 4: Simplify right side
    454,116.50x = 158,500,316,861.63
  5. Step 5: Solve for x
    x = 158,500,316,861.63/454,116.50
  6. Step 6: Final answer
    x = 349,030.08

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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.