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Finding the Fourth Proportional to 628,018.41, 866,657.18 and 341,532.39

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Solution

The fourth proportional to 628,018.41, 866,657.18 and 341,532.39 is: 471,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,018.41 : 866,657.18 = 341,532.39 : x
  2. Step 2: Convert to fraction form
    628,018.41/866,657.18 = 341,532.39/x
  3. Step 3: Cross multiply
    628,018.41x = 866,657.18 × 341,532.39
  4. Step 4: Simplify right side
    628,018.41x = 295,991,496,288.40
  5. Step 5: Solve for x
    x = 295,991,496,288.40/628,018.41
  6. Step 6: Final answer
    x = 471,310.22

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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.