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Finding the Fourth Proportional to 298,147.04, 411,436.24 and 170,897.60

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Solution

The fourth proportional to 298,147.04, 411,436.24 and 170,897.60 is: 235,834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,147.04 : 411,436.24 = 170,897.60 : x
  2. Step 2: Convert to fraction form
    298,147.04/411,436.24 = 170,897.60/x
  3. Step 3: Cross multiply
    298,147.04x = 411,436.24 × 170,897.60
  4. Step 4: Simplify right side
    298,147.04x = 70,313,465,969.02
  5. Step 5: Solve for x
    x = 70,313,465,969.02/298,147.04
  6. Step 6: Final answer
    x = 235,834.86

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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.