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Finding the Fourth Proportional to 705,348.88, 973,679.32 and 476,216.56

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Solution

The fourth proportional to 705,348.88, 973,679.32 and 476,216.56 is: 657,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,348.88 : 973,679.32 = 476,216.56 : x
  2. Step 2: Convert to fraction form
    705,348.88/973,679.32 = 476,216.56/x
  3. Step 3: Cross multiply
    705,348.88x = 973,679.32 × 476,216.56
  4. Step 4: Simplify right side
    705,348.88x = 463,682,216,313.54
  5. Step 5: Solve for x
    x = 463,682,216,313.54/705,348.88
  6. Step 6: Final answer
    x = 657,379.96

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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.