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Finding the Fourth Proportional to 252,523.40, 378,785.10 and 65,534.90

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Solution

The fourth proportional to 252,523.40, 378,785.10 and 65,534.90 is: 98,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,523.40 : 378,785.10 = 65,534.90 : x
  2. Step 2: Convert to fraction form
    252,523.40/378,785.10 = 65,534.90/x
  3. Step 3: Cross multiply
    252,523.40x = 378,785.10 × 65,534.90
  4. Step 4: Simplify right side
    252,523.40x = 24,823,643,649.99
  5. Step 5: Solve for x
    x = 24,823,643,649.99/252,523.40
  6. Step 6: Final answer
    x = 98,302.35

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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.