Home / 1,328,986.20-1,993,770.90-655,390.20

Finding the Fourth Proportional to 1,328,986.20, 1,993,770.90 and 655,390.20

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Solution

The fourth proportional to 1,328,986.20, 1,993,770.90 and 655,390.20 is: 983,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,986.20 : 1,993,770.90 = 655,390.20 : x
  2. Step 2: Convert to fraction form
    1,328,986.20/1,993,770.90 = 655,390.20/x
  3. Step 3: Cross multiply
    1,328,986.20x = 1,993,770.90 × 655,390.20
  4. Step 4: Simplify right side
    1,328,986.20x = 1,306,697,908,905.18
  5. Step 5: Solve for x
    x = 1,306,697,908,905.18/1,328,986.20
  6. Step 6: Final answer
    x = 983,229.10

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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.