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Finding the Fourth Proportional to 291,325.31, 401,707.60 and 199,459.71

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Solution

The fourth proportional to 291,325.31, 401,707.60 and 199,459.71 is: 275,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,325.31 : 401,707.60 = 199,459.71 : x
  2. Step 2: Convert to fraction form
    291,325.31/401,707.60 = 199,459.71/x
  3. Step 3: Cross multiply
    291,325.31x = 401,707.60 × 199,459.71
  4. Step 4: Simplify right side
    291,325.31x = 80,124,480,403.50
  5. Step 5: Solve for x
    x = 80,124,480,403.50/291,325.31
  6. Step 6: Final answer
    x = 275,034.40

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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.