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Finding the Fourth Proportional to 311,598.36, 430,036.09 and 184,314.96

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Solution

The fourth proportional to 311,598.36, 430,036.09 and 184,314.96 is: 254,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,598.36 : 430,036.09 = 184,314.96 : x
  2. Step 2: Convert to fraction form
    311,598.36/430,036.09 = 184,314.96/x
  3. Step 3: Cross multiply
    311,598.36x = 430,036.09 × 184,314.96
  4. Step 4: Simplify right side
    311,598.36x = 79,262,084,266.12
  5. Step 5: Solve for x
    x = 79,262,084,266.12/311,598.36
  6. Step 6: Final answer
    x = 254,372.60

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1.5x scale

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.