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Finding the Fourth Proportional to 302,648.50, 417,673.80 and 166,682.40

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Solution

The fourth proportional to 302,648.50, 417,673.80 and 166,682.40 is: 230,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,648.50 : 417,673.80 = 166,682.40 : x
  2. Step 2: Convert to fraction form
    302,648.50/417,673.80 = 166,682.40/x
  3. Step 3: Cross multiply
    302,648.50x = 417,673.80 × 166,682.40
  4. Step 4: Simplify right side
    302,648.50x = 69,618,871,401.12
  5. Step 5: Solve for x
    x = 69,618,871,401.12/302,648.50
  6. Step 6: Final answer
    x = 230,032.11

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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.