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Finding the Fourth Proportional to 442,041.54, 663,066.95 and 353,855.63

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Solution

The fourth proportional to 442,041.54, 663,066.95 and 353,855.63 is: 530,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,041.54 : 663,066.95 = 353,855.63 : x
  2. Step 2: Convert to fraction form
    442,041.54/663,066.95 = 353,855.63/x
  3. Step 3: Cross multiply
    442,041.54x = 663,066.95 × 353,855.63
  4. Step 4: Simplify right side
    442,041.54x = 234,629,973,324.43
  5. Step 5: Solve for x
    x = 234,629,973,324.43/442,041.54
  6. Step 6: Final answer
    x = 530,787.16

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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.