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Finding the Fourth Proportional to 326,045.70, 489,068.55 and 231,567.30

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Solution

The fourth proportional to 326,045.70, 489,068.55 and 231,567.30 is: 347,350.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,045.70 : 489,068.55 = 231,567.30 : x
  2. Step 2: Convert to fraction form
    326,045.70/489,068.55 = 231,567.30/x
  3. Step 3: Cross multiply
    326,045.70x = 489,068.55 × 231,567.30
  4. Step 4: Simplify right side
    326,045.70x = 113,252,283,638.42
  5. Step 5: Solve for x
    x = 113,252,283,638.42/326,045.70
  6. Step 6: Final answer
    x = 347,350.95

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1.5x scale

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.