Home / 864,198.01-1,294,560.78-430,607.67

Finding the Fourth Proportional to 864,198.01, 1,294,560.78 and 430,607.67

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Solution

The fourth proportional to 864,198.01, 1,294,560.78 and 430,607.67 is: 645,046.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,198.01 : 1,294,560.78 = 430,607.67 : x
  2. Step 2: Convert to fraction form
    864,198.01/1,294,560.78 = 430,607.67/x
  3. Step 3: Cross multiply
    864,198.01x = 1,294,560.78 × 430,607.67
  4. Step 4: Simplify right side
    864,198.01x = 557,447,801,149.18
  5. Step 5: Solve for x
    x = 557,447,801,149.18/864,198.01
  6. Step 6: Final answer
    x = 645,046.38

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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.