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Finding the Fourth Proportional to 579,612.92, 798,941.61 and 456,905.21

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Solution

The fourth proportional to 579,612.92, 798,941.61 and 456,905.21 is: 629,800.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,612.92 : 798,941.61 = 456,905.21 : x
  2. Step 2: Convert to fraction form
    579,612.92/798,941.61 = 456,905.21/x
  3. Step 3: Cross multiply
    579,612.92x = 798,941.61 × 456,905.21
  4. Step 4: Simplify right side
    579,612.92x = 365,040,580,100.08
  5. Step 5: Solve for x
    x = 365,040,580,100.08/579,612.92
  6. Step 6: Final answer
    x = 629,800.63

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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.