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Finding the Fourth Proportional to 628,006.13, 866,640.30 and 341,520.07

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Solution

The fourth proportional to 628,006.13, 866,640.30 and 341,520.07 is: 471,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,006.13 : 866,640.30 = 341,520.07 : x
  2. Step 2: Convert to fraction form
    628,006.13/866,640.30 = 341,520.07/x
  3. Step 3: Cross multiply
    628,006.13x = 866,640.30 × 341,520.07
  4. Step 4: Simplify right side
    628,006.13x = 295,975,055,920.82
  5. Step 5: Solve for x
    x = 295,975,055,920.82/628,006.13
  6. Step 6: Final answer
    x = 471,293.26

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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.