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Finding the Fourth Proportional to 362,155.80, 543,233.70 and 355,157.40

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Solution

The fourth proportional to 362,155.80, 543,233.70 and 355,157.40 is: 532,736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,155.80 : 543,233.70 = 355,157.40 : x
  2. Step 2: Convert to fraction form
    362,155.80/543,233.70 = 355,157.40/x
  3. Step 3: Cross multiply
    362,155.80x = 543,233.70 × 355,157.40
  4. Step 4: Simplify right side
    362,155.80x = 192,933,468,484.38
  5. Step 5: Solve for x
    x = 192,933,468,484.38/362,155.80
  6. Step 6: Final answer
    x = 532,736.10

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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.