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Finding the Fourth Proportional to 354,705.78, 532,058.67 and 236,607.78

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Solution

The fourth proportional to 354,705.78, 532,058.67 and 236,607.78 is: 354,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,705.78 : 532,058.67 = 236,607.78 : x
  2. Step 2: Convert to fraction form
    354,705.78/532,058.67 = 236,607.78/x
  3. Step 3: Cross multiply
    354,705.78x = 532,058.67 × 236,607.78
  4. Step 4: Simplify right side
    354,705.78x = 125,889,220,738.45
  5. Step 5: Solve for x
    x = 125,889,220,738.45/354,705.78
  6. Step 6: Final answer
    x = 354,911.67

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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.