Home / 1,989,458.40-2,983,870.80-659,762.40

Finding the Fourth Proportional to 1,989,458.40, 2,983,870.80 and 659,762.40

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Solution

The fourth proportional to 1,989,458.40, 2,983,870.80 and 659,762.40 is: 989,538.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,458.40 : 2,983,870.80 = 659,762.40 : x
  2. Step 2: Convert to fraction form
    1,989,458.40/2,983,870.80 = 659,762.40/x
  3. Step 3: Cross multiply
    1,989,458.40x = 2,983,870.80 × 659,762.40
  4. Step 4: Simplify right side
    1,989,458.40x = 1,968,645,760,297.92
  5. Step 5: Solve for x
    x = 1,968,645,760,297.92/1,989,458.40
  6. Step 6: Final answer
    x = 989,538.54

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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.