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Finding the Fourth Proportional to 357,636.40, 493,755 and 236,881.20

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Solution

The fourth proportional to 357,636.40, 493,755 and 236,881.20 is: 327,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,636.40 : 493,755 = 236,881.20 : x
  2. Step 2: Convert to fraction form
    357,636.40/493,755 = 236,881.20/x
  3. Step 3: Cross multiply
    357,636.40x = 493,755 × 236,881.20
  4. Step 4: Simplify right side
    357,636.40x = 116,961,276,906
  5. Step 5: Solve for x
    x = 116,961,276,906/357,636.40
  6. Step 6: Final answer
    x = 327,039.63

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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.