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Finding the Fourth Proportional to 620,906.01, 930,579.90 and 265,502.11

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Solution

The fourth proportional to 620,906.01, 930,579.90 and 265,502.11 is: 397,920.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,906.01 : 930,579.90 = 265,502.11 : x
  2. Step 2: Convert to fraction form
    620,906.01/930,579.90 = 265,502.11/x
  3. Step 3: Cross multiply
    620,906.01x = 930,579.90 × 265,502.11
  4. Step 4: Simplify right side
    620,906.01x = 247,070,923,651.51
  5. Step 5: Solve for x
    x = 247,070,923,651.51/620,906.01
  6. Step 6: Final answer
    x = 397,920.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.