Home / 383,011.19-528,555.44-221,897.38

Finding the Fourth Proportional to 383,011.19, 528,555.44 and 221,897.38

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Solution

The fourth proportional to 383,011.19, 528,555.44 and 221,897.38 is: 306,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,011.19 : 528,555.44 = 221,897.38 : x
  2. Step 2: Convert to fraction form
    383,011.19/528,555.44 = 221,897.38/x
  3. Step 3: Cross multiply
    383,011.19x = 528,555.44 × 221,897.38
  4. Step 4: Simplify right side
    383,011.19x = 117,285,066,010.38
  5. Step 5: Solve for x
    x = 117,285,066,010.38/383,011.19
  6. Step 6: Final answer
    x = 306,218.38

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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.