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Finding the Fourth Proportional to 451,783.72, 677,738.12 and 152,349.92

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Solution

The fourth proportional to 451,783.72, 677,738.12 and 152,349.92 is: 228,545.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,783.72 : 677,738.12 = 152,349.92 : x
  2. Step 2: Convert to fraction form
    451,783.72/677,738.12 = 152,349.92/x
  3. Step 3: Cross multiply
    451,783.72x = 677,738.12 × 152,349.92
  4. Step 4: Simplify right side
    451,783.72x = 103,253,348,362.95
  5. Step 5: Solve for x
    x = 103,253,348,362.95/451,783.72
  6. Step 6: Final answer
    x = 228,545.97

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1.5x scale

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.