Home / 816,900.12-1,127,324.52-454,347.36

Finding the Fourth Proportional to 816,900.12, 1,127,324.52 and 454,347.36

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Solution

The fourth proportional to 816,900.12, 1,127,324.52 and 454,347.36 is: 627,000.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,900.12 : 1,127,324.52 = 454,347.36 : x
  2. Step 2: Convert to fraction form
    816,900.12/1,127,324.52 = 454,347.36/x
  3. Step 3: Cross multiply
    816,900.12x = 1,127,324.52 × 454,347.36
  4. Step 4: Simplify right side
    816,900.12x = 512,196,919,525.27
  5. Step 5: Solve for x
    x = 512,196,919,525.27/816,900.12
  6. Step 6: Final answer
    x = 627,000.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.