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Finding the Fourth Proportional to 508,512.75, 701,747.60 and 282,194.67

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Solution

The fourth proportional to 508,512.75, 701,747.60 and 282,194.67 is: 389,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,512.75 : 701,747.60 = 282,194.67 : x
  2. Step 2: Convert to fraction form
    508,512.75/701,747.60 = 282,194.67/x
  3. Step 3: Cross multiply
    508,512.75x = 701,747.60 × 282,194.67
  4. Step 4: Simplify right side
    508,512.75x = 198,029,430,994.32
  5. Step 5: Solve for x
    x = 198,029,430,994.32/508,512.75
  6. Step 6: Final answer
    x = 389,428.64

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.