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Finding the Fourth Proportional to 313,636.33, 432,722.78 and 177,648.67

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Solution

The fourth proportional to 313,636.33, 432,722.78 and 177,648.67 is: 245,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,636.33 : 432,722.78 = 177,648.67 : x
  2. Step 2: Convert to fraction form
    313,636.33/432,722.78 = 177,648.67/x
  3. Step 3: Cross multiply
    313,636.33x = 432,722.78 × 177,648.67
  4. Step 4: Simplify right side
    313,636.33x = 76,872,625,041.83
  5. Step 5: Solve for x
    x = 76,872,625,041.83/313,636.33
  6. Step 6: Final answer
    x = 245,101.15

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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.