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Finding the Fourth Proportional to 655,388.72, 983,082.68 and 374,709.16

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Solution

The fourth proportional to 655,388.72, 983,082.68 and 374,709.16 is: 562,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,388.72 : 983,082.68 = 374,709.16 : x
  2. Step 2: Convert to fraction form
    655,388.72/983,082.68 = 374,709.16/x
  3. Step 3: Cross multiply
    655,388.72x = 983,082.68 × 374,709.16
  4. Step 4: Simplify right side
    655,388.72x = 368,370,085,233.35
  5. Step 5: Solve for x
    x = 368,370,085,233.35/655,388.72
  6. Step 6: Final answer
    x = 562,063.51

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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.