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Finding the Fourth Proportional to 430,233.66, 647,911.67 and 374,744.01

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Solution

The fourth proportional to 430,233.66, 647,911.67 and 374,744.01 is: 564,346.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,233.66 : 647,911.67 = 374,744.01 : x
  2. Step 2: Convert to fraction form
    430,233.66/647,911.67 = 374,744.01/x
  3. Step 3: Cross multiply
    430,233.66x = 647,911.67 × 374,744.01
  4. Step 4: Simplify right side
    430,233.66x = 242,801,017,341.60
  5. Step 5: Solve for x
    x = 242,801,017,341.60/430,233.66
  6. Step 6: Final answer
    x = 564,346.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.