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Finding the Fourth Proportional to 254,805.70, 382,208.55 and 239,059.30

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Solution

The fourth proportional to 254,805.70, 382,208.55 and 239,059.30 is: 358,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,805.70 : 382,208.55 = 239,059.30 : x
  2. Step 2: Convert to fraction form
    254,805.70/382,208.55 = 239,059.30/x
  3. Step 3: Cross multiply
    254,805.70x = 382,208.55 × 239,059.30
  4. Step 4: Simplify right side
    254,805.70x = 91,370,508,417.02
  5. Step 5: Solve for x
    x = 91,370,508,417.02/254,805.70
  6. Step 6: Final answer
    x = 358,588.95

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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.