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Finding the Fourth Proportional to 509,081.80, 763,622.70 and 176,657.80

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Solution

The fourth proportional to 509,081.80, 763,622.70 and 176,657.80 is: 264,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,081.80 : 763,622.70 = 176,657.80 : x
  2. Step 2: Convert to fraction form
    509,081.80/763,622.70 = 176,657.80/x
  3. Step 3: Cross multiply
    509,081.80x = 763,622.70 × 176,657.80
  4. Step 4: Simplify right side
    509,081.80x = 134,899,906,212.06
  5. Step 5: Solve for x
    x = 134,899,906,212.06/509,081.80
  6. Step 6: Final answer
    x = 264,986.70

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Similar ratio
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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.