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Finding the Fourth Proportional to 342,674.74, 473,140.61 and 275,063.64

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Solution

The fourth proportional to 342,674.74, 473,140.61 and 275,063.64 is: 379,788.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,674.74 : 473,140.61 = 275,063.64 : x
  2. Step 2: Convert to fraction form
    342,674.74/473,140.61 = 275,063.64/x
  3. Step 3: Cross multiply
    342,674.74x = 473,140.61 × 275,063.64
  4. Step 4: Simplify right side
    342,674.74x = 130,143,778,418.42
  5. Step 5: Solve for x
    x = 130,143,778,418.42/342,674.74
  6. Step 6: Final answer
    x = 379,788.07

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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.