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Finding the Fourth Proportional to 674,854.08, 931,269.60 and 368,924.64

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Solution

The fourth proportional to 674,854.08, 931,269.60 and 368,924.64 is: 509,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,854.08 : 931,269.60 = 368,924.64 : x
  2. Step 2: Convert to fraction form
    674,854.08/931,269.60 = 368,924.64/x
  3. Step 3: Cross multiply
    674,854.08x = 931,269.60 × 368,924.64
  4. Step 4: Simplify right side
    674,854.08x = 343,568,301,922.94
  5. Step 5: Solve for x
    x = 343,568,301,922.94/674,854.08
  6. Step 6: Final answer
    x = 509,100.13

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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.