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Finding the Fourth Proportional to 309,044.46, 426,534.75 and 174,908.46

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Solution

The fourth proportional to 309,044.46, 426,534.75 and 174,908.46 is: 241,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,044.46 : 426,534.75 = 174,908.46 : x
  2. Step 2: Convert to fraction form
    309,044.46/426,534.75 = 174,908.46/x
  3. Step 3: Cross multiply
    309,044.46x = 426,534.75 × 174,908.46
  4. Step 4: Simplify right side
    309,044.46x = 74,604,536,258.99
  5. Step 5: Solve for x
    x = 74,604,536,258.99/309,044.46
  6. Step 6: Final answer
    x = 241,403.89

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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.