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Finding the Fourth Proportional to 521,656.80, 784,234.80 and 444,674.40

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Solution

The fourth proportional to 521,656.80, 784,234.80 and 444,674.40 is: 668,503.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,656.80 : 784,234.80 = 444,674.40 : x
  2. Step 2: Convert to fraction form
    521,656.80/784,234.80 = 444,674.40/x
  3. Step 3: Cross multiply
    521,656.80x = 784,234.80 × 444,674.40
  4. Step 4: Simplify right side
    521,656.80x = 348,729,139,149.12
  5. Step 5: Solve for x
    x = 348,729,139,149.12/521,656.80
  6. Step 6: Final answer
    x = 668,503.01

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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.