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Finding the Fourth Proportional to 506,841.75, 699,441.62 and 280,501.83

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Solution

The fourth proportional to 506,841.75, 699,441.62 and 280,501.83 is: 387,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,841.75 : 699,441.62 = 280,501.83 : x
  2. Step 2: Convert to fraction form
    506,841.75/699,441.62 = 280,501.83/x
  3. Step 3: Cross multiply
    506,841.75x = 699,441.62 × 280,501.83
  4. Step 4: Simplify right side
    506,841.75x = 196,194,652,985.66
  5. Step 5: Solve for x
    x = 196,194,652,985.66/506,841.75
  6. Step 6: Final answer
    x = 387,092.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.