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Finding the Fourth Proportional to 298,034.16, 411,289.08 and 162,069.59

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Solution

The fourth proportional to 298,034.16, 411,289.08 and 162,069.59 is: 223,657.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,034.16 : 411,289.08 = 162,069.59 : x
  2. Step 2: Convert to fraction form
    298,034.16/411,289.08 = 162,069.59/x
  3. Step 3: Cross multiply
    298,034.16x = 411,289.08 × 162,069.59
  4. Step 4: Simplify right side
    298,034.16x = 66,657,449,700.28
  5. Step 5: Solve for x
    x = 66,657,449,700.28/298,034.16
  6. Step 6: Final answer
    x = 223,657.08

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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.