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Finding the Fourth Proportional to 659,856.48, 989,858.52 and 186,578.76

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Solution

The fourth proportional to 659,856.48, 989,858.52 and 186,578.76 is: 279,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,856.48 : 989,858.52 = 186,578.76 : x
  2. Step 2: Convert to fraction form
    659,856.48/989,858.52 = 186,578.76/x
  3. Step 3: Cross multiply
    659,856.48x = 989,858.52 × 186,578.76
  4. Step 4: Simplify right side
    659,856.48x = 184,686,575,237.04
  5. Step 5: Solve for x
    x = 184,686,575,237.04/659,856.48
  6. Step 6: Final answer
    x = 279,889.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.