Home / 383,127.64-528,678.30-213,377.56

Finding the Fourth Proportional to 383,127.64, 528,678.30 and 213,377.56

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Solution

The fourth proportional to 383,127.64, 528,678.30 and 213,377.56 is: 294,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,127.64 : 528,678.30 = 213,377.56 : x
  2. Step 2: Convert to fraction form
    383,127.64/528,678.30 = 213,377.56/x
  3. Step 3: Cross multiply
    383,127.64x = 528,678.30 × 213,377.56
  4. Step 4: Simplify right side
    383,127.64x = 112,808,085,678.95
  5. Step 5: Solve for x
    x = 112,808,085,678.95/383,127.64
  6. Step 6: Final answer
    x = 294,439.96

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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.