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Finding the Fourth Proportional to 265,256.96, 397,530.50 and 130,114.40

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Solution

The fourth proportional to 265,256.96, 397,530.50 and 130,114.40 is: 194,997.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,256.96 : 397,530.50 = 130,114.40 : x
  2. Step 2: Convert to fraction form
    265,256.96/397,530.50 = 130,114.40/x
  3. Step 3: Cross multiply
    265,256.96x = 397,530.50 × 130,114.40
  4. Step 4: Simplify right side
    265,256.96x = 51,724,442,489.20
  5. Step 5: Solve for x
    x = 51,724,442,489.20/265,256.96
  6. Step 6: Final answer
    x = 194,997.49

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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.