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Finding the Fourth Proportional to 405,901.20, 608,851.80 and 293,926.80

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Solution

The fourth proportional to 405,901.20, 608,851.80 and 293,926.80 is: 440,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,901.20 : 608,851.80 = 293,926.80 : x
  2. Step 2: Convert to fraction form
    405,901.20/608,851.80 = 293,926.80/x
  3. Step 3: Cross multiply
    405,901.20x = 608,851.80 × 293,926.80
  4. Step 4: Simplify right side
    405,901.20x = 178,957,861,248.24
  5. Step 5: Solve for x
    x = 178,957,861,248.24/405,901.20
  6. Step 6: Final answer
    x = 440,890.20

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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.