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Finding the Fourth Proportional to 432,373.63, 648,248.80 and 263,854.35

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Solution

The fourth proportional to 432,373.63, 648,248.80 and 263,854.35 is: 395,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,373.63 : 648,248.80 = 263,854.35 : x
  2. Step 2: Convert to fraction form
    432,373.63/648,248.80 = 263,854.35/x
  3. Step 3: Cross multiply
    432,373.63x = 648,248.80 × 263,854.35
  4. Step 4: Simplify right side
    432,373.63x = 171,043,265,762.28
  5. Step 5: Solve for x
    x = 171,043,265,762.28/432,373.63
  6. Step 6: Final answer
    x = 395,591.34

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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.