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Finding the Fourth Proportional to 577,394.20, 796,771.78 and 319,256.20

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Solution

The fourth proportional to 577,394.20, 796,771.78 and 319,256.20 is: 440,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,394.20 : 796,771.78 = 319,256.20 : x
  2. Step 2: Convert to fraction form
    577,394.20/796,771.78 = 319,256.20/x
  3. Step 3: Cross multiply
    577,394.20x = 796,771.78 × 319,256.20
  4. Step 4: Simplify right side
    577,394.20x = 254,374,330,750.04
  5. Step 5: Solve for x
    x = 254,374,330,750.04/577,394.20
  6. Step 6: Final answer
    x = 440,555.74

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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.