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Finding the Fourth Proportional to 365,938.60, 548,648.70 and 141,212.20

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Solution

The fourth proportional to 365,938.60, 548,648.70 and 141,212.20 is: 211,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,938.60 : 548,648.70 = 141,212.20 : x
  2. Step 2: Convert to fraction form
    365,938.60/548,648.70 = 141,212.20/x
  3. Step 3: Cross multiply
    365,938.60x = 548,648.70 × 141,212.20
  4. Step 4: Simplify right side
    365,938.60x = 77,475,889,954.14
  5. Step 5: Solve for x
    x = 77,475,889,954.14/365,938.60
  6. Step 6: Final answer
    x = 211,718.28

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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.