Home / 621,184.46-857,206.95-379,871.42

Finding the Fourth Proportional to 621,184.46, 857,206.95 and 379,871.42

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Solution

The fourth proportional to 621,184.46, 857,206.95 and 379,871.42 is: 524,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,184.46 : 857,206.95 = 379,871.42 : x
  2. Step 2: Convert to fraction form
    621,184.46/857,206.95 = 379,871.42/x
  3. Step 3: Cross multiply
    621,184.46x = 857,206.95 × 379,871.42
  4. Step 4: Simplify right side
    621,184.46x = 325,628,421,330.37
  5. Step 5: Solve for x
    x = 325,628,421,330.37/621,184.46
  6. Step 6: Final answer
    x = 524,205.68

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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.