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Finding the Fourth Proportional to 628,066.31, 866,735.60 and 341,588.48

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Solution

The fourth proportional to 628,066.31, 866,735.60 and 341,588.48 is: 471,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,066.31 : 866,735.60 = 341,588.48 : x
  2. Step 2: Convert to fraction form
    628,066.31/866,735.60 = 341,588.48/x
  3. Step 3: Cross multiply
    628,066.31x = 866,735.60 × 341,588.48
  4. Step 4: Simplify right side
    628,066.31x = 296,066,890,124.27
  5. Step 5: Solve for x
    x = 296,066,890,124.27/628,066.31
  6. Step 6: Final answer
    x = 471,394.32

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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.