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Finding the Fourth Proportional to 459,993.53, 634,776.93 and 256,039.22

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Solution

The fourth proportional to 459,993.53, 634,776.93 and 256,039.22 is: 353,326.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,993.53 : 634,776.93 = 256,039.22 : x
  2. Step 2: Convert to fraction form
    459,993.53/634,776.93 = 256,039.22/x
  3. Step 3: Cross multiply
    459,993.53x = 634,776.93 × 256,039.22
  4. Step 4: Simplify right side
    459,993.53x = 162,527,786,857.31
  5. Step 5: Solve for x
    x = 162,527,786,857.31/459,993.53
  6. Step 6: Final answer
    x = 353,326.25

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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.