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Finding the Fourth Proportional to 335,642.40, 503,463.60 and 274,202.40

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Solution

The fourth proportional to 335,642.40, 503,463.60 and 274,202.40 is: 411,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,642.40 : 503,463.60 = 274,202.40 : x
  2. Step 2: Convert to fraction form
    335,642.40/503,463.60 = 274,202.40/x
  3. Step 3: Cross multiply
    335,642.40x = 503,463.60 × 274,202.40
  4. Step 4: Simplify right side
    335,642.40x = 138,050,927,432.64
  5. Step 5: Solve for x
    x = 138,050,927,432.64/335,642.40
  6. Step 6: Final answer
    x = 411,303.60

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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.