Home / 383,140.84-528,682.34-213,341.16

Finding the Fourth Proportional to 383,140.84, 528,682.34 and 213,341.16

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Solution

The fourth proportional to 383,140.84, 528,682.34 and 213,341.16 is: 294,381.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,140.84 : 528,682.34 = 213,341.16 : x
  2. Step 2: Convert to fraction form
    383,140.84/528,682.34 = 213,341.16/x
  3. Step 3: Cross multiply
    383,140.84x = 528,682.34 × 213,341.16
  4. Step 4: Simplify right side
    383,140.84x = 112,789,703,687.11
  5. Step 5: Solve for x
    x = 112,789,703,687.11/383,140.84
  6. Step 6: Final answer
    x = 294,381.84

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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.