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Finding the Fourth Proportional to 628,028.80, 866,671.58 and 341,542.74

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Solution

The fourth proportional to 628,028.80, 866,671.58 and 341,542.74 is: 471,324.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,028.80 : 866,671.58 = 341,542.74 : x
  2. Step 2: Convert to fraction form
    628,028.80/866,671.58 = 341,542.74/x
  3. Step 3: Cross multiply
    628,028.80x = 866,671.58 × 341,542.74
  4. Step 4: Simplify right side
    628,028.80x = 296,005,386,113.33
  5. Step 5: Solve for x
    x = 296,005,386,113.33/628,028.80
  6. Step 6: Final answer
    x = 471,324.54

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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.