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Finding the Fourth Proportional to 681,506.34, 940,485.17 and 375,593.75

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Solution

The fourth proportional to 681,506.34, 940,485.17 and 375,593.75 is: 518,322.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,506.34 : 940,485.17 = 375,593.75 : x
  2. Step 2: Convert to fraction form
    681,506.34/940,485.17 = 375,593.75/x
  3. Step 3: Cross multiply
    681,506.34x = 940,485.17 × 375,593.75
  4. Step 4: Simplify right side
    681,506.34x = 353,240,351,819.69
  5. Step 5: Solve for x
    x = 353,240,351,819.69/681,506.34
  6. Step 6: Final answer
    x = 518,322.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.