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Finding the Fourth Proportional to 326,701.55, 490,082.60 and 127,036.96

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Solution

The fourth proportional to 326,701.55, 490,082.60 and 127,036.96 is: 190,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,701.55 : 490,082.60 = 127,036.96 : x
  2. Step 2: Convert to fraction form
    326,701.55/490,082.60 = 127,036.96/x
  3. Step 3: Cross multiply
    326,701.55x = 490,082.60 × 127,036.96
  4. Step 4: Simplify right side
    326,701.55x = 62,258,602,745.28
  5. Step 5: Solve for x
    x = 62,258,602,745.28/326,701.55
  6. Step 6: Final answer
    x = 190,567.21

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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.