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Finding the Fourth Proportional to 293,372,431.80, 440,058,647.70 and 190,060,301.40

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Solution

The fourth proportional to 293,372,431.80, 440,058,647.70 and 190,060,301.40 is: 285,090,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,372,431.80 : 440,058,647.70 = 190,060,301.40 : x
  2. Step 2: Convert to fraction form
    293,372,431.80/440,058,647.70 = 190,060,301.40/x
  3. Step 3: Cross multiply
    293,372,431.80x = 440,058,647.70 × 190,060,301.40
  4. Step 4: Simplify right side
    293,372,431.80x = 83,637,679,215,538,416
  5. Step 5: Solve for x
    x = 83,637,679,215,538,416/293,372,431.80
  6. Step 6: Final answer
    x = 285,090,452.10

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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.