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Finding the Fourth Proportional to 432,835.20, 648,475.20 and 370,627.20

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Solution

The fourth proportional to 432,835.20, 648,475.20 and 370,627.20 is: 555,274.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,835.20 : 648,475.20 = 370,627.20 : x
  2. Step 2: Convert to fraction form
    432,835.20/648,475.20 = 370,627.20/x
  3. Step 3: Cross multiply
    432,835.20x = 648,475.20 × 370,627.20
  4. Step 4: Simplify right side
    432,835.20x = 240,342,547,645.44
  5. Step 5: Solve for x
    x = 240,342,547,645.44/432,835.20
  6. Step 6: Final answer
    x = 555,274.96

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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.