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Finding the Fourth Proportional to 476,164.87, 657,126.44 and 261,312.67

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Solution

The fourth proportional to 476,164.87, 657,126.44 and 261,312.67 is: 360,621.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,164.87 : 657,126.44 = 261,312.67 : x
  2. Step 2: Convert to fraction form
    476,164.87/657,126.44 = 261,312.67/x
  3. Step 3: Cross multiply
    476,164.87x = 657,126.44 × 261,312.67
  4. Step 4: Simplify right side
    476,164.87x = 171,715,463,257.43
  5. Step 5: Solve for x
    x = 171,715,463,257.43/476,164.87
  6. Step 6: Final answer
    x = 360,621.87

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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.