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Finding the Fourth Proportional to 605,467.40, 908,201.10 and 156,187.40

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Solution

The fourth proportional to 605,467.40, 908,201.10 and 156,187.40 is: 234,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,467.40 : 908,201.10 = 156,187.40 : x
  2. Step 2: Convert to fraction form
    605,467.40/908,201.10 = 156,187.40/x
  3. Step 3: Cross multiply
    605,467.40x = 908,201.10 × 156,187.40
  4. Step 4: Simplify right side
    605,467.40x = 141,849,568,486.14
  5. Step 5: Solve for x
    x = 141,849,568,486.14/605,467.40
  6. Step 6: Final answer
    x = 234,281.10

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Similar ratio
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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.