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Finding the Fourth Proportional to 380,560.40, 570,840.60 and 233,104.40

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Solution

The fourth proportional to 380,560.40, 570,840.60 and 233,104.40 is: 349,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,560.40 : 570,840.60 = 233,104.40 : x
  2. Step 2: Convert to fraction form
    380,560.40/570,840.60 = 233,104.40/x
  3. Step 3: Cross multiply
    380,560.40x = 570,840.60 × 233,104.40
  4. Step 4: Simplify right side
    380,560.40x = 133,065,455,558.64
  5. Step 5: Solve for x
    x = 133,065,455,558.64/380,560.40
  6. Step 6: Final answer
    x = 349,656.60

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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.