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Finding the Fourth Proportional to 613,058.82, 846,138.21 and 405,962.07

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Solution

The fourth proportional to 613,058.82, 846,138.21 and 405,962.07 is: 560,305.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,058.82 : 846,138.21 = 405,962.07 : x
  2. Step 2: Convert to fraction form
    613,058.82/846,138.21 = 405,962.07/x
  3. Step 3: Cross multiply
    613,058.82x = 846,138.21 × 405,962.07
  4. Step 4: Simplify right side
    613,058.82x = 343,500,019,237.70
  5. Step 5: Solve for x
    x = 343,500,019,237.70/613,058.82
  6. Step 6: Final answer
    x = 560,305.16

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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.