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Finding the Fourth Proportional to 383,177.62, 528,801.47 and 213,411.76

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Solution

The fourth proportional to 383,177.62, 528,801.47 and 213,411.76 is: 294,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,177.62 : 528,801.47 = 213,411.76 : x
  2. Step 2: Convert to fraction form
    383,177.62/528,801.47 = 213,411.76/x
  3. Step 3: Cross multiply
    383,177.62x = 528,801.47 × 213,411.76
  4. Step 4: Simplify right side
    383,177.62x = 112,852,452,403.29
  5. Step 5: Solve for x
    x = 112,852,452,403.29/383,177.62
  6. Step 6: Final answer
    x = 294,517.34

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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.