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Finding the Fourth Proportional to 362,406.20, 543,609.30 and 357,157.40

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Solution

The fourth proportional to 362,406.20, 543,609.30 and 357,157.40 is: 535,736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,406.20 : 543,609.30 = 357,157.40 : x
  2. Step 2: Convert to fraction form
    362,406.20/543,609.30 = 357,157.40/x
  3. Step 3: Cross multiply
    362,406.20x = 543,609.30 × 357,157.40
  4. Step 4: Simplify right side
    362,406.20x = 194,154,084,203.82
  5. Step 5: Solve for x
    x = 194,154,084,203.82/362,406.20
  6. Step 6: Final answer
    x = 535,736.10

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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.