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Finding the Fourth Proportional to 326,059.40, 489,089.10 and 294,566.60

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Solution

The fourth proportional to 326,059.40, 489,089.10 and 294,566.60 is: 441,849.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,059.40 : 489,089.10 = 294,566.60 : x
  2. Step 2: Convert to fraction form
    326,059.40/489,089.10 = 294,566.60/x
  3. Step 3: Cross multiply
    326,059.40x = 489,089.10 × 294,566.60
  4. Step 4: Simplify right side
    326,059.40x = 144,069,313,284.06
  5. Step 5: Solve for x
    x = 144,069,313,284.06/326,059.40
  6. Step 6: Final answer
    x = 441,849.90

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Similar ratio
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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.