Home / 445,539.40-668,309.10-113,115.40

Finding the Fourth Proportional to 445,539.40, 668,309.10 and 113,115.40

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Solution

The fourth proportional to 445,539.40, 668,309.10 and 113,115.40 is: 169,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,539.40 : 668,309.10 = 113,115.40 : x
  2. Step 2: Convert to fraction form
    445,539.40/668,309.10 = 113,115.40/x
  3. Step 3: Cross multiply
    445,539.40x = 668,309.10 × 113,115.40
  4. Step 4: Simplify right side
    445,539.40x = 75,596,051,170.14
  5. Step 5: Solve for x
    x = 75,596,051,170.14/445,539.40
  6. Step 6: Final answer
    x = 169,673.10

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1.5x scale

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.