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Finding the Fourth Proportional to 702,258.76, 969,110.18 and 379,961.78

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Solution

The fourth proportional to 702,258.76, 969,110.18 and 379,961.78 is: 524,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,258.76 : 969,110.18 = 379,961.78 : x
  2. Step 2: Convert to fraction form
    702,258.76/969,110.18 = 379,961.78/x
  3. Step 3: Cross multiply
    702,258.76x = 969,110.18 × 379,961.78
  4. Step 4: Simplify right side
    702,258.76x = 368,224,829,958.83
  5. Step 5: Solve for x
    x = 368,224,829,958.83/702,258.76
  6. Step 6: Final answer
    x = 524,343.52

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Double scale
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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.