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Finding the Fourth Proportional to 509,170.50, 763,755.75 and 176,746.50

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Solution

The fourth proportional to 509,170.50, 763,755.75 and 176,746.50 is: 265,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,170.50 : 763,755.75 = 176,746.50 : x
  2. Step 2: Convert to fraction form
    509,170.50/763,755.75 = 176,746.50/x
  3. Step 3: Cross multiply
    509,170.50x = 763,755.75 × 176,746.50
  4. Step 4: Simplify right side
    509,170.50x = 134,991,155,667.38
  5. Step 5: Solve for x
    x = 134,991,155,667.38/509,170.50
  6. Step 6: Final answer
    x = 265,119.75

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Double scale
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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.