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Finding the Fourth Proportional to 313,779.69, 433,015.88 and 170,540.10

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Solution

The fourth proportional to 313,779.69, 433,015.88 and 170,540.10 is: 235,345.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,779.69 : 433,015.88 = 170,540.10 : x
  2. Step 2: Convert to fraction form
    313,779.69/433,015.88 = 170,540.10/x
  3. Step 3: Cross multiply
    313,779.69x = 433,015.88 × 170,540.10
  4. Step 4: Simplify right side
    313,779.69x = 73,846,570,624.09
  5. Step 5: Solve for x
    x = 73,846,570,624.09/313,779.69
  6. Step 6: Final answer
    x = 235,345.29

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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.