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Finding the Fourth Proportional to 381,669.60, 533,637.60 and 381,669.60

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Solution

The fourth proportional to 381,669.60, 533,637.60 and 381,669.60 is: 533,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,669.60 : 533,637.60 = 381,669.60 : x
  2. Step 2: Convert to fraction form
    381,669.60/533,637.60 = 381,669.60/x
  3. Step 3: Cross multiply
    381,669.60x = 533,637.60 × 381,669.60
  4. Step 4: Simplify right side
    381,669.60x = 203,673,249,336.96
  5. Step 5: Solve for x
    x = 203,673,249,336.96/381,669.60
  6. Step 6: Final answer
    x = 533,637.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.