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Finding the Fourth Proportional to 520,066.70, 780,100.05 and 441,529.10

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Solution

The fourth proportional to 520,066.70, 780,100.05 and 441,529.10 is: 662,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,066.70 : 780,100.05 = 441,529.10 : x
  2. Step 2: Convert to fraction form
    520,066.70/780,100.05 = 441,529.10/x
  3. Step 3: Cross multiply
    520,066.70x = 780,100.05 × 441,529.10
  4. Step 4: Simplify right side
    520,066.70x = 344,436,872,986.46
  5. Step 5: Solve for x
    x = 344,436,872,986.46/520,066.70
  6. Step 6: Final answer
    x = 662,293.65

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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.