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Finding the Fourth Proportional to 322,430.63, 482,908.30 and 154,069.30

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Solution

The fourth proportional to 322,430.63, 482,908.30 and 154,069.30 is: 230,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,430.63 : 482,908.30 = 154,069.30 : x
  2. Step 2: Convert to fraction form
    322,430.63/482,908.30 = 154,069.30/x
  3. Step 3: Cross multiply
    322,430.63x = 482,908.30 × 154,069.30
  4. Step 4: Simplify right side
    322,430.63x = 74,401,343,745.19
  5. Step 5: Solve for x
    x = 74,401,343,745.19/322,430.63
  6. Step 6: Final answer
    x = 230,751.48

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1.5x scale

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.