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Finding the Fourth Proportional to 427,373.67, 589,744.55 and 236,390.25

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Solution

The fourth proportional to 427,373.67, 589,744.55 and 236,390.25 is: 326,201.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,373.67 : 589,744.55 = 236,390.25 : x
  2. Step 2: Convert to fraction form
    427,373.67/589,744.55 = 236,390.25/x
  3. Step 3: Cross multiply
    427,373.67x = 589,744.55 × 236,390.25
  4. Step 4: Simplify right side
    427,373.67x = 139,409,862,201.61
  5. Step 5: Solve for x
    x = 139,409,862,201.61/427,373.67
  6. Step 6: Final answer
    x = 326,201.34

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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.