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Finding the Fourth Proportional to 432,643.60, 648,084.08 and 352,965.52

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Solution

The fourth proportional to 432,643.60, 648,084.08 and 352,965.52 is: 528,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,643.60 : 648,084.08 = 352,965.52 : x
  2. Step 2: Convert to fraction form
    432,643.60/648,084.08 = 352,965.52/x
  3. Step 3: Cross multiply
    432,643.60x = 648,084.08 × 352,965.52
  4. Step 4: Simplify right side
    432,643.60x = 228,751,334,300.92
  5. Step 5: Solve for x
    x = 228,751,334,300.92/432,643.60
  6. Step 6: Final answer
    x = 528,729.27

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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.