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Finding the Fourth Proportional to 705,660.48, 973,896.48 and 403,848

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Solution

The fourth proportional to 705,660.48, 973,896.48 and 403,848 is: 557,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,660.48 : 973,896.48 = 403,848 : x
  2. Step 2: Convert to fraction form
    705,660.48/973,896.48 = 403,848/x
  3. Step 3: Cross multiply
    705,660.48x = 973,896.48 × 403,848
  4. Step 4: Simplify right side
    705,660.48x = 393,306,145,655.04
  5. Step 5: Solve for x
    x = 393,306,145,655.04/705,660.48
  6. Step 6: Final answer
    x = 557,358.90

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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.