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Finding the Fourth Proportional to 435,905.91, 601,818.54 and 345,626.55

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Solution

The fourth proportional to 435,905.91, 601,818.54 and 345,626.55 is: 477,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,905.91 : 601,818.54 = 345,626.55 : x
  2. Step 2: Convert to fraction form
    435,905.91/601,818.54 = 345,626.55/x
  3. Step 3: Cross multiply
    435,905.91x = 601,818.54 × 345,626.55
  4. Step 4: Simplify right side
    435,905.91x = 208,004,465,706.24
  5. Step 5: Solve for x
    x = 208,004,465,706.24/435,905.91
  6. Step 6: Final answer
    x = 477,177.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.