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Finding the Fourth Proportional to 624,338.20, 934,433.70 and 437,714.20

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Solution

The fourth proportional to 624,338.20, 934,433.70 and 437,714.20 is: 655,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,338.20 : 934,433.70 = 437,714.20 : x
  2. Step 2: Convert to fraction form
    624,338.20/934,433.70 = 437,714.20/x
  3. Step 3: Cross multiply
    624,338.20x = 934,433.70 × 437,714.20
  4. Step 4: Simplify right side
    624,338.20x = 409,014,899,448.54
  5. Step 5: Solve for x
    x = 409,014,899,448.54/624,338.20
  6. Step 6: Final answer
    x = 655,117.53

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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.