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Finding the Fourth Proportional to 574,993.40, 793,491.72 and 320,353.52

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Solution

The fourth proportional to 574,993.40, 793,491.72 and 320,353.52 is: 442,088.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,993.40 : 793,491.72 = 320,353.52 : x
  2. Step 2: Convert to fraction form
    574,993.40/793,491.72 = 320,353.52/x
  3. Step 3: Cross multiply
    574,993.40x = 793,491.72 × 320,353.52
  4. Step 4: Simplify right side
    574,993.40x = 254,197,865,592.85
  5. Step 5: Solve for x
    x = 254,197,865,592.85/574,993.40
  6. Step 6: Final answer
    x = 442,088.32

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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.