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Finding the Fourth Proportional to 628,076.54, 866,720.67 and 341,596.46

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Solution

The fourth proportional to 628,076.54, 866,720.67 and 341,596.46 is: 471,389.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,076.54 : 866,720.67 = 341,596.46 : x
  2. Step 2: Convert to fraction form
    628,076.54/866,720.67 = 341,596.46/x
  3. Step 3: Cross multiply
    628,076.54x = 866,720.67 × 341,596.46
  4. Step 4: Simplify right side
    628,076.54x = 296,068,712,680.83
  5. Step 5: Solve for x
    x = 296,068,712,680.83/628,076.54
  6. Step 6: Final answer
    x = 471,389.54

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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.