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Finding the Fourth Proportional to 628,073.78, 866,739.41 and 341,598.65

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Solution

The fourth proportional to 628,073.78, 866,739.41 and 341,598.65 is: 471,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,073.78 : 866,739.41 = 341,598.65 : x
  2. Step 2: Convert to fraction form
    628,073.78/866,739.41 = 341,598.65/x
  3. Step 3: Cross multiply
    628,073.78x = 866,739.41 × 341,598.65
  4. Step 4: Simplify right side
    628,073.78x = 296,077,013,433.26
  5. Step 5: Solve for x
    x = 296,077,013,433.26/628,073.78
  6. Step 6: Final answer
    x = 471,404.83

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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.