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Finding the Fourth Proportional to 432,077.40, 648,116.10 and 363,648.60

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Solution

The fourth proportional to 432,077.40, 648,116.10 and 363,648.60 is: 545,472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,077.40 : 648,116.10 = 363,648.60 : x
  2. Step 2: Convert to fraction form
    432,077.40/648,116.10 = 363,648.60/x
  3. Step 3: Cross multiply
    432,077.40x = 648,116.10 × 363,648.60
  4. Step 4: Simplify right side
    432,077.40x = 235,686,512,402.46
  5. Step 5: Solve for x
    x = 235,686,512,402.46/432,077.40
  6. Step 6: Final answer
    x = 545,472.90

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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.