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Finding the Fourth Proportional to 384,881.20, 575,766.60 and 332,868.40

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Solution

The fourth proportional to 384,881.20, 575,766.60 and 332,868.40 is: 497,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,881.20 : 575,766.60 = 332,868.40 : x
  2. Step 2: Convert to fraction form
    384,881.20/575,766.60 = 332,868.40/x
  3. Step 3: Cross multiply
    384,881.20x = 575,766.60 × 332,868.40
  4. Step 4: Simplify right side
    384,881.20x = 191,654,506,915.44
  5. Step 5: Solve for x
    x = 191,654,506,915.44/384,881.20
  6. Step 6: Final answer
    x = 497,957.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.