Home / 382,975.61-528,507.11-213,215.81

Finding the Fourth Proportional to 382,975.61, 528,507.11 and 213,215.81

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Solution

The fourth proportional to 382,975.61, 528,507.11 and 213,215.81 is: 294,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,975.61 : 528,507.11 = 213,215.81 : x
  2. Step 2: Convert to fraction form
    382,975.61/528,507.11 = 213,215.81/x
  3. Step 3: Cross multiply
    382,975.61x = 528,507.11 × 213,215.81
  4. Step 4: Simplify right side
    382,975.61x = 112,686,069,439.91
  5. Step 5: Solve for x
    x = 112,686,069,439.91/382,975.61
  6. Step 6: Final answer
    x = 294,238.24

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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.