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Finding the Fourth Proportional to 425,195.82, 586,750.79 and 243,896.34

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Solution

The fourth proportional to 425,195.82, 586,750.79 and 243,896.34 is: 336,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,195.82 : 586,750.79 = 243,896.34 : x
  2. Step 2: Convert to fraction form
    425,195.82/586,750.79 = 243,896.34/x
  3. Step 3: Cross multiply
    425,195.82x = 586,750.79 × 243,896.34
  4. Step 4: Simplify right side
    425,195.82x = 143,106,368,953.63
  5. Step 5: Solve for x
    x = 143,106,368,953.63/425,195.82
  6. Step 6: Final answer
    x = 336,565.79

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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.