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Finding the Fourth Proportional to 323,675.40, 485,513.10 and 183,707.40

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Solution

The fourth proportional to 323,675.40, 485,513.10 and 183,707.40 is: 275,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,675.40 : 485,513.10 = 183,707.40 : x
  2. Step 2: Convert to fraction form
    323,675.40/485,513.10 = 183,707.40/x
  3. Step 3: Cross multiply
    323,675.40x = 485,513.10 × 183,707.40
  4. Step 4: Simplify right side
    323,675.40x = 89,192,349,266.94
  5. Step 5: Solve for x
    x = 89,192,349,266.94/323,675.40
  6. Step 6: Final answer
    x = 275,561.10

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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.