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Finding the Fourth Proportional to 548,790.12, 823,430.61 and 349,058.70

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Solution

The fourth proportional to 548,790.12, 823,430.61 and 349,058.70 is: 523,744.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,790.12 : 823,430.61 = 349,058.70 : x
  2. Step 2: Convert to fraction form
    548,790.12/823,430.61 = 349,058.70/x
  3. Step 3: Cross multiply
    548,790.12x = 823,430.61 × 349,058.70
  4. Step 4: Simplify right side
    548,790.12x = 287,425,618,266.81
  5. Step 5: Solve for x
    x = 287,425,618,266.81/548,790.12
  6. Step 6: Final answer
    x = 523,744.16

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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.