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Finding the Fourth Proportional to 307,587.70, 461,446.35 and 130,003.30

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Solution

The fourth proportional to 307,587.70, 461,446.35 and 130,003.30 is: 195,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,587.70 : 461,446.35 = 130,003.30 : x
  2. Step 2: Convert to fraction form
    307,587.70/461,446.35 = 130,003.30/x
  3. Step 3: Cross multiply
    307,587.70x = 461,446.35 × 130,003.30
  4. Step 4: Simplify right side
    307,587.70x = 59,989,548,272.96
  5. Step 5: Solve for x
    x = 59,989,548,272.96/307,587.70
  6. Step 6: Final answer
    x = 195,032.34

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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.