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Finding the Fourth Proportional to 476,366.84, 657,389 and 261,508.67

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Solution

The fourth proportional to 476,366.84, 657,389 and 261,508.67 is: 360,883.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,366.84 : 657,389 = 261,508.67 : x
  2. Step 2: Convert to fraction form
    476,366.84/657,389 = 261,508.67/x
  3. Step 3: Cross multiply
    476,366.84x = 657,389 × 261,508.67
  4. Step 4: Simplify right side
    476,366.84x = 171,912,923,062.63
  5. Step 5: Solve for x
    x = 171,912,923,062.63/476,366.84
  6. Step 6: Final answer
    x = 360,883.48

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1.5x scale

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.