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Finding the Fourth Proportional to 419,256.90, 578,561.88 and 232,987.73

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Solution

The fourth proportional to 419,256.90, 578,561.88 and 232,987.73 is: 321,516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,256.90 : 578,561.88 = 232,987.73 : x
  2. Step 2: Convert to fraction form
    419,256.90/578,561.88 = 232,987.73/x
  3. Step 3: Cross multiply
    419,256.90x = 578,561.88 × 232,987.73
  4. Step 4: Simplify right side
    419,256.90x = 134,797,819,085.73
  5. Step 5: Solve for x
    x = 134,797,819,085.73/419,256.90
  6. Step 6: Final answer
    x = 321,516.04

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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.