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Finding the Fourth Proportional to 504,715.06, 696,548.66 and 289,896.58

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Solution

The fourth proportional to 504,715.06, 696,548.66 and 289,896.58 is: 400,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,715.06 : 696,548.66 = 289,896.58 : x
  2. Step 2: Convert to fraction form
    504,715.06/696,548.66 = 289,896.58/x
  3. Step 3: Cross multiply
    504,715.06x = 696,548.66 × 289,896.58
  4. Step 4: Simplify right side
    504,715.06x = 201,927,074,337.58
  5. Step 5: Solve for x
    x = 201,927,074,337.58/504,715.06
  6. Step 6: Final answer
    x = 400,081.33

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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.