Home / 645,020.10-968,562.90-512,998.20

Finding the Fourth Proportional to 645,020.10, 968,562.90 and 512,998.20

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Solution

The fourth proportional to 645,020.10, 968,562.90 and 512,998.20 is: 770,318.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,020.10 : 968,562.90 = 512,998.20 : x
  2. Step 2: Convert to fraction form
    645,020.10/968,562.90 = 512,998.20/x
  3. Step 3: Cross multiply
    645,020.10x = 968,562.90 × 512,998.20
  4. Step 4: Simplify right side
    645,020.10x = 496,871,024,286.78
  5. Step 5: Solve for x
    x = 496,871,024,286.78/645,020.10
  6. Step 6: Final answer
    x = 770,318.67

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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.