Home / 658,014.94-986,821.48-278,928.56

Finding the Fourth Proportional to 658,014.94, 986,821.48 and 278,928.56

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Solution

The fourth proportional to 658,014.94, 986,821.48 and 278,928.56 is: 418,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,014.94 : 986,821.48 = 278,928.56 : x
  2. Step 2: Convert to fraction form
    658,014.94/986,821.48 = 278,928.56/x
  3. Step 3: Cross multiply
    658,014.94x = 986,821.48 × 278,928.56
  4. Step 4: Simplify right side
    658,014.94x = 275,252,697,209.18
  5. Step 5: Solve for x
    x = 275,252,697,209.18/658,014.94
  6. Step 6: Final answer
    x = 418,307.67

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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.