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Finding the Fourth Proportional to 459,991.36, 634,787.99 and 256,037.91

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Solution

The fourth proportional to 459,991.36, 634,787.99 and 256,037.91 is: 353,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,991.36 : 634,787.99 = 256,037.91 : x
  2. Step 2: Convert to fraction form
    459,991.36/634,787.99 = 256,037.91/x
  3. Step 3: Cross multiply
    459,991.36x = 634,787.99 × 256,037.91
  4. Step 4: Simplify right side
    459,991.36x = 162,529,791,122.88
  5. Step 5: Solve for x
    x = 162,529,791,122.88/459,991.36
  6. Step 6: Final answer
    x = 353,332.27

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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.