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Finding the Fourth Proportional to 298,526.85, 411,531.84 and 226,782.32

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Solution

The fourth proportional to 298,526.85, 411,531.84 and 226,782.32 is: 312,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,526.85 : 411,531.84 = 226,782.32 : x
  2. Step 2: Convert to fraction form
    298,526.85/411,531.84 = 226,782.32/x
  3. Step 3: Cross multiply
    298,526.85x = 411,531.84 × 226,782.32
  4. Step 4: Simplify right side
    298,526.85x = 93,328,143,371.41
  5. Step 5: Solve for x
    x = 93,328,143,371.41/298,526.85
  6. Step 6: Final answer
    x = 312,628.98

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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.