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Finding the Fourth Proportional to 291,888.63, 436,979.88 and 263,873.16

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Solution

The fourth proportional to 291,888.63, 436,979.88 and 263,873.16 is: 395,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,888.63 : 436,979.88 = 263,873.16 : x
  2. Step 2: Convert to fraction form
    291,888.63/436,979.88 = 263,873.16/x
  3. Step 3: Cross multiply
    291,888.63x = 436,979.88 × 263,873.16
  4. Step 4: Simplify right side
    291,888.63x = 115,307,261,792.02
  5. Step 5: Solve for x
    x = 115,307,261,792.02/291,888.63
  6. Step 6: Final answer
    x = 395,038.55

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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.