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Finding the Fourth Proportional to 303,485.55, 424,092.45 and 303,485.55

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Solution

The fourth proportional to 303,485.55, 424,092.45 and 303,485.55 is: 424,092.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,485.55 : 424,092.45 = 303,485.55 : x
  2. Step 2: Convert to fraction form
    303,485.55/424,092.45 = 303,485.55/x
  3. Step 3: Cross multiply
    303,485.55x = 424,092.45 × 303,485.55
  4. Step 4: Simplify right side
    303,485.55x = 128,705,930,439.10
  5. Step 5: Solve for x
    x = 128,705,930,439.10/303,485.55
  6. Step 6: Final answer
    x = 424,092.45

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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.