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Finding the Fourth Proportional to 561,530.52, 842,878.98 and 325,334.52

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Solution

The fourth proportional to 561,530.52, 842,878.98 and 325,334.52 is: 488,339.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,530.52 : 842,878.98 = 325,334.52 : x
  2. Step 2: Convert to fraction form
    561,530.52/842,878.98 = 325,334.52/x
  3. Step 3: Cross multiply
    561,530.52x = 842,878.98 × 325,334.52
  4. Step 4: Simplify right side
    561,530.52x = 274,217,628,376.39
  5. Step 5: Solve for x
    x = 274,217,628,376.39/561,530.52
  6. Step 6: Final answer
    x = 488,339.67

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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.