Home / 649,972.20-975,534.30-383,399.40

Finding the Fourth Proportional to 649,972.20, 975,534.30 and 383,399.40

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Solution

The fourth proportional to 649,972.20, 975,534.30 and 383,399.40 is: 575,438.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,972.20 : 975,534.30 = 383,399.40 : x
  2. Step 2: Convert to fraction form
    649,972.20/975,534.30 = 383,399.40/x
  3. Step 3: Cross multiply
    649,972.20x = 975,534.30 × 383,399.40
  4. Step 4: Simplify right side
    649,972.20x = 374,019,265,299.42
  5. Step 5: Solve for x
    x = 374,019,265,299.42/649,972.20
  6. Step 6: Final answer
    x = 575,438.87

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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.