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Finding the Fourth Proportional to 355,674.85, 490,876.13 and 233,270.15

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Solution

The fourth proportional to 355,674.85, 490,876.13 and 233,270.15 is: 321,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,674.85 : 490,876.13 = 233,270.15 : x
  2. Step 2: Convert to fraction form
    355,674.85/490,876.13 = 233,270.15/x
  3. Step 3: Cross multiply
    355,674.85x = 490,876.13 × 233,270.15
  4. Step 4: Simplify right side
    355,674.85x = 114,506,746,605.31
  5. Step 5: Solve for x
    x = 114,506,746,605.31/355,674.85
  6. Step 6: Final answer
    x = 321,942.21

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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.