Home / 638,467.40-957,528.30-189,187.40

Finding the Fourth Proportional to 638,467.40, 957,528.30 and 189,187.40

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Solution

The fourth proportional to 638,467.40, 957,528.30 and 189,187.40 is: 283,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,467.40 : 957,528.30 = 189,187.40 : x
  2. Step 2: Convert to fraction form
    638,467.40/957,528.30 = 189,187.40/x
  3. Step 3: Cross multiply
    638,467.40x = 957,528.30 × 189,187.40
  4. Step 4: Simplify right side
    638,467.40x = 181,152,289,503.42
  5. Step 5: Solve for x
    x = 181,152,289,503.42/638,467.40
  6. Step 6: Final answer
    x = 283,729.90

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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.