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Finding the Fourth Proportional to 317,661.51, 478,775.56 and 273,817.42

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Solution

The fourth proportional to 317,661.51, 478,775.56 and 273,817.42 is: 412,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,661.51 : 478,775.56 = 273,817.42 : x
  2. Step 2: Convert to fraction form
    317,661.51/478,775.56 = 273,817.42/x
  3. Step 3: Cross multiply
    317,661.51x = 478,775.56 × 273,817.42
  4. Step 4: Simplify right side
    317,661.51x = 131,097,088,598.26
  5. Step 5: Solve for x
    x = 131,097,088,598.26/317,661.51
  6. Step 6: Final answer
    x = 412,694.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.