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Finding the Fourth Proportional to 574,173.61, 792,394.52 and 319,524.80

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Solution

The fourth proportional to 574,173.61, 792,394.52 and 319,524.80 is: 440,963.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,173.61 : 792,394.52 = 319,524.80 : x
  2. Step 2: Convert to fraction form
    574,173.61/792,394.52 = 319,524.80/x
  3. Step 3: Cross multiply
    574,173.61x = 792,394.52 × 319,524.80
  4. Step 4: Simplify right side
    574,173.61x = 253,189,702,117.71
  5. Step 5: Solve for x
    x = 253,189,702,117.71/574,173.61
  6. Step 6: Final answer
    x = 440,963.67

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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.