Home / 383,130.14-528,681.75-213,380.06

Finding the Fourth Proportional to 383,130.14, 528,681.75 and 213,380.06

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Solution

The fourth proportional to 383,130.14, 528,681.75 and 213,380.06 is: 294,443.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,130.14 : 528,681.75 = 213,380.06 : x
  2. Step 2: Convert to fraction form
    383,130.14/528,681.75 = 213,380.06/x
  3. Step 3: Cross multiply
    383,130.14x = 528,681.75 × 213,380.06
  4. Step 4: Simplify right side
    383,130.14x = 112,810,143,535.91
  5. Step 5: Solve for x
    x = 112,810,143,535.91/383,130.14
  6. Step 6: Final answer
    x = 294,443.41

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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.