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Finding the Fourth Proportional to 670,581.22, 925,383.62 and 368,775.22

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Solution

The fourth proportional to 670,581.22, 925,383.62 and 368,775.22 is: 508,899.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,581.22 : 925,383.62 = 368,775.22 : x
  2. Step 2: Convert to fraction form
    670,581.22/925,383.62 = 368,775.22/x
  3. Step 3: Cross multiply
    670,581.22x = 925,383.62 × 368,775.22
  4. Step 4: Simplify right side
    670,581.22x = 341,258,548,049.90
  5. Step 5: Solve for x
    x = 341,258,548,049.90/670,581.22
  6. Step 6: Final answer
    x = 508,899.65

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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.