Home / 1,938,989.40-2,908,830.57-659,531.49

Finding the Fourth Proportional to 1,938,989.40, 2,908,830.57 and 659,531.49

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Solution

The fourth proportional to 1,938,989.40, 2,908,830.57 and 659,531.49 is: 989,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,989.40 : 2,908,830.57 = 659,531.49 : x
  2. Step 2: Convert to fraction form
    1,938,989.40/2,908,830.57 = 659,531.49/x
  3. Step 3: Cross multiply
    1,938,989.40x = 2,908,830.57 × 659,531.49
  4. Step 4: Simplify right side
    1,938,989.40x = 1,918,465,359,989.65
  5. Step 5: Solve for x
    x = 1,918,465,359,989.65/1,938,989.40
  6. Step 6: Final answer
    x = 989,415.08

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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.