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Finding the Fourth Proportional to 489,004.60, 675,105.58 and 374,071.16

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Solution

The fourth proportional to 489,004.60, 675,105.58 and 374,071.16 is: 516,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,004.60 : 675,105.58 = 374,071.16 : x
  2. Step 2: Convert to fraction form
    489,004.60/675,105.58 = 374,071.16/x
  3. Step 3: Cross multiply
    489,004.60x = 675,105.58 × 374,071.16
  4. Step 4: Simplify right side
    489,004.60x = 252,537,527,433.07
  5. Step 5: Solve for x
    x = 252,537,527,433.07/489,004.60
  6. Step 6: Final answer
    x = 516,431.80

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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.