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Finding the Fourth Proportional to 298,143.04, 411,430.72 and 170,893.60

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Solution

The fourth proportional to 298,143.04, 411,430.72 and 170,893.60 is: 235,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,143.04 : 411,430.72 = 170,893.60 : x
  2. Step 2: Convert to fraction form
    298,143.04/411,430.72 = 170,893.60/x
  3. Step 3: Cross multiply
    298,143.04x = 411,430.72 × 170,893.60
  4. Step 4: Simplify right side
    298,143.04x = 70,310,876,891.39
  5. Step 5: Solve for x
    x = 70,310,876,891.39/298,143.04
  6. Step 6: Final answer
    x = 235,829.34

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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.