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Finding the Fourth Proportional to 353,464.40, 530,196.60 and 347,632.40

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Solution

The fourth proportional to 353,464.40, 530,196.60 and 347,632.40 is: 521,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,464.40 : 530,196.60 = 347,632.40 : x
  2. Step 2: Convert to fraction form
    353,464.40/530,196.60 = 347,632.40/x
  3. Step 3: Cross multiply
    353,464.40x = 530,196.60 × 347,632.40
  4. Step 4: Simplify right side
    353,464.40x = 184,313,516,529.84
  5. Step 5: Solve for x
    x = 184,313,516,529.84/353,464.40
  6. Step 6: Final answer
    x = 521,448.60

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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.