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Finding the Fourth Proportional to 342,315.60, 512,501.40 and 323,696.40

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Solution

The fourth proportional to 342,315.60, 512,501.40 and 323,696.40 is: 484,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,315.60 : 512,501.40 = 323,696.40 : x
  2. Step 2: Convert to fraction form
    342,315.60/512,501.40 = 323,696.40/x
  3. Step 3: Cross multiply
    342,315.60x = 512,501.40 × 323,696.40
  4. Step 4: Simplify right side
    342,315.60x = 165,894,858,174.96
  5. Step 5: Solve for x
    x = 165,894,858,174.96/342,315.60
  6. Step 6: Final answer
    x = 484,625.47

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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.