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Finding the Fourth Proportional to 317,863.68, 438,652.80 and 190,544.64

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Solution

The fourth proportional to 317,863.68, 438,652.80 and 190,544.64 is: 262,952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,863.68 : 438,652.80 = 190,544.64 : x
  2. Step 2: Convert to fraction form
    317,863.68/438,652.80 = 190,544.64/x
  3. Step 3: Cross multiply
    317,863.68x = 438,652.80 × 190,544.64
  4. Step 4: Simplify right side
    317,863.68x = 83,582,939,860.99
  5. Step 5: Solve for x
    x = 83,582,939,860.99/317,863.68
  6. Step 6: Final answer
    x = 262,952.16

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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.