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Finding the Fourth Proportional to 674,804.62, 931,230.23 and 368,882.28

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Solution

The fourth proportional to 674,804.62, 931,230.23 and 368,882.28 is: 509,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,804.62 : 931,230.23 = 368,882.28 : x
  2. Step 2: Convert to fraction form
    674,804.62/931,230.23 = 368,882.28/x
  3. Step 3: Cross multiply
    674,804.62x = 931,230.23 × 368,882.28
  4. Step 4: Simplify right side
    674,804.62x = 343,514,330,447.32
  5. Step 5: Solve for x
    x = 343,514,330,447.32/674,804.62
  6. Step 6: Final answer
    x = 509,057.47

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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.