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Finding the Fourth Proportional to 312,047.44, 430,622.40 and 168,804.40

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Solution

The fourth proportional to 312,047.44, 430,622.40 and 168,804.40 is: 232,948.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,047.44 : 430,622.40 = 168,804.40 : x
  2. Step 2: Convert to fraction form
    312,047.44/430,622.40 = 168,804.40/x
  3. Step 3: Cross multiply
    312,047.44x = 430,622.40 × 168,804.40
  4. Step 4: Simplify right side
    312,047.44x = 72,690,955,858.56
  5. Step 5: Solve for x
    x = 72,690,955,858.56/312,047.44
  6. Step 6: Final answer
    x = 232,948.41

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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.