Home / 383,089.07-528,686.80-211,007.00

Finding the Fourth Proportional to 383,089.07, 528,686.80 and 211,007.00

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Solution

The fourth proportional to 383,089.07, 528,686.80 and 211,007.00 is: 291,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,089.07 : 528,686.80 = 211,007.00 : x
  2. Step 2: Convert to fraction form
    383,089.07/528,686.80 = 211,007.00/x
  3. Step 3: Cross multiply
    383,089.07x = 528,686.80 × 211,007.00
  4. Step 4: Simplify right side
    383,089.07x = 111,556,616,401.80
  5. Step 5: Solve for x
    x = 111,556,616,401.80/383,089.07
  6. Step 6: Final answer
    x = 291,202.82

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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.