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Finding the Fourth Proportional to 504,859.56, 696,682.74 and 289,848.28

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Solution

The fourth proportional to 504,859.56, 696,682.74 and 289,848.28 is: 399,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,859.56 : 696,682.74 = 289,848.28 : x
  2. Step 2: Convert to fraction form
    504,859.56/696,682.74 = 289,848.28/x
  3. Step 3: Cross multiply
    504,859.56x = 696,682.74 × 289,848.28
  4. Step 4: Simplify right side
    504,859.56x = 201,932,293,894.69
  5. Step 5: Solve for x
    x = 201,932,293,894.69/504,859.56
  6. Step 6: Final answer
    x = 399,977.16

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Similar ratio
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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.