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Finding the Fourth Proportional to 307,792.80, 461,689.20 and 175,082.40

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Solution

The fourth proportional to 307,792.80, 461,689.20 and 175,082.40 is: 262,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,792.80 : 461,689.20 = 175,082.40 : x
  2. Step 2: Convert to fraction form
    307,792.80/461,689.20 = 175,082.40/x
  3. Step 3: Cross multiply
    307,792.80x = 461,689.20 × 175,082.40
  4. Step 4: Simplify right side
    307,792.80x = 80,833,653,190.08
  5. Step 5: Solve for x
    x = 80,833,653,190.08/307,792.80
  6. Step 6: Final answer
    x = 262,623.60

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Similar ratio
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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.