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Finding the Fourth Proportional to 308,955.70, 433,471.10 and 308,955.70

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Solution

The fourth proportional to 308,955.70, 433,471.10 and 308,955.70 is: 433,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,955.70 : 433,471.10 = 308,955.70 : x
  2. Step 2: Convert to fraction form
    308,955.70/433,471.10 = 308,955.70/x
  3. Step 3: Cross multiply
    308,955.70x = 433,471.10 × 308,955.70
  4. Step 4: Simplify right side
    308,955.70x = 133,923,367,130.27
  5. Step 5: Solve for x
    x = 133,923,367,130.27/308,955.70
  6. Step 6: Final answer
    x = 433,471.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.