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Finding the Fourth Proportional to 440,749.64, 661,124.46 and 290,954.84

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Solution

The fourth proportional to 440,749.64, 661,124.46 and 290,954.84 is: 436,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,749.64 : 661,124.46 = 290,954.84 : x
  2. Step 2: Convert to fraction form
    440,749.64/661,124.46 = 290,954.84/x
  3. Step 3: Cross multiply
    440,749.64x = 661,124.46 × 290,954.84
  4. Step 4: Simplify right side
    440,749.64x = 192,357,359,264.85
  5. Step 5: Solve for x
    x = 192,357,359,264.85/440,749.64
  6. Step 6: Final answer
    x = 436,432.25

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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.