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Finding the Fourth Proportional to 320,668.94, 480,044.46 and 193,925.60

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Solution

The fourth proportional to 320,668.94, 480,044.46 and 193,925.60 is: 290,308.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,668.94 : 480,044.46 = 193,925.60 : x
  2. Step 2: Convert to fraction form
    320,668.94/480,044.46 = 193,925.60/x
  3. Step 3: Cross multiply
    320,668.94x = 480,044.46 × 193,925.60
  4. Step 4: Simplify right side
    320,668.94x = 93,092,909,932.18
  5. Step 5: Solve for x
    x = 93,092,909,932.18/320,668.94
  6. Step 6: Final answer
    x = 290,308.47

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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.