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Finding the Fourth Proportional to 621,000.84, 930,721.90 and 265,597

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Solution

The fourth proportional to 621,000.84, 930,721.90 and 265,597 is: 398,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,000.84 : 930,721.90 = 265,597 : x
  2. Step 2: Convert to fraction form
    621,000.84/930,721.90 = 265,597/x
  3. Step 3: Cross multiply
    621,000.84x = 930,721.90 × 265,597
  4. Step 4: Simplify right side
    621,000.84x = 247,196,944,474.30
  5. Step 5: Solve for x
    x = 247,196,944,474.30/621,000.84
  6. Step 6: Final answer
    x = 398,062.17

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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.