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Finding the Fourth Proportional to 528,500.74, 792,722.78 and 186,920.50

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Solution

The fourth proportional to 528,500.74, 792,722.78 and 186,920.50 is: 280,370.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,500.74 : 792,722.78 = 186,920.50 : x
  2. Step 2: Convert to fraction form
    528,500.74/792,722.78 = 186,920.50/x
  3. Step 3: Cross multiply
    528,500.74x = 792,722.78 × 186,920.50
  4. Step 4: Simplify right side
    528,500.74x = 148,176,138,398.99
  5. Step 5: Solve for x
    x = 148,176,138,398.99/528,500.74
  6. Step 6: Final answer
    x = 280,370.73

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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.