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Finding the Fourth Proportional to 547,774.62, 755,859.51 and 321,337.50

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Solution

The fourth proportional to 547,774.62, 755,859.51 and 321,337.50 is: 443,405.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,774.62 : 755,859.51 = 321,337.50 : x
  2. Step 2: Convert to fraction form
    547,774.62/755,859.51 = 321,337.50/x
  3. Step 3: Cross multiply
    547,774.62x = 755,859.51 × 321,337.50
  4. Step 4: Simplify right side
    547,774.62x = 242,886,005,294.63
  5. Step 5: Solve for x
    x = 242,886,005,294.63/547,774.62
  6. Step 6: Final answer
    x = 443,405.00

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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.