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Finding the Fourth Proportional to 383,177.37, 528,801.12 and 213,411.51

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Solution

The fourth proportional to 383,177.37, 528,801.12 and 213,411.51 is: 294,516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,177.37 : 528,801.12 = 213,411.51 : x
  2. Step 2: Convert to fraction form
    383,177.37/528,801.12 = 213,411.51/x
  3. Step 3: Cross multiply
    383,177.37x = 528,801.12 × 213,411.51
  4. Step 4: Simplify right side
    383,177.37x = 112,852,245,508.89
  5. Step 5: Solve for x
    x = 112,852,245,508.89/383,177.37
  6. Step 6: Final answer
    x = 294,516.99

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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.