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Finding the Fourth Proportional to 647,551.92, 894,185.64 and 406,249.32

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Solution

The fourth proportional to 647,551.92, 894,185.64 and 406,249.32 is: 560,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,551.92 : 894,185.64 = 406,249.32 : x
  2. Step 2: Convert to fraction form
    647,551.92/894,185.64 = 406,249.32/x
  3. Step 3: Cross multiply
    647,551.92x = 894,185.64 × 406,249.32
  4. Step 4: Simplify right side
    647,551.92x = 363,262,308,203.77
  5. Step 5: Solve for x
    x = 363,262,308,203.77/647,551.92
  6. Step 6: Final answer
    x = 560,977.89

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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.