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Finding the Fourth Proportional to 319,210.60, 477,894.30 and 194,794.60

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Solution

The fourth proportional to 319,210.60, 477,894.30 and 194,794.60 is: 291,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,210.60 : 477,894.30 = 194,794.60 : x
  2. Step 2: Convert to fraction form
    319,210.60/477,894.30 = 194,794.60/x
  3. Step 3: Cross multiply
    319,210.60x = 477,894.30 × 194,794.60
  4. Step 4: Simplify right side
    319,210.60x = 93,091,229,010.78
  5. Step 5: Solve for x
    x = 93,091,229,010.78/319,210.60
  6. Step 6: Final answer
    x = 291,629.50

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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.