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Finding the Fourth Proportional to 662,894.80, 994,342.20 and 477,653.20

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Solution

The fourth proportional to 662,894.80, 994,342.20 and 477,653.20 is: 716,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,894.80 : 994,342.20 = 477,653.20 : x
  2. Step 2: Convert to fraction form
    662,894.80/994,342.20 = 477,653.20/x
  3. Step 3: Cross multiply
    662,894.80x = 994,342.20 × 477,653.20
  4. Step 4: Simplify right side
    662,894.80x = 474,950,733,725.04
  5. Step 5: Solve for x
    x = 474,950,733,725.04/662,894.80
  6. Step 6: Final answer
    x = 716,479.80

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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.