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Finding the Fourth Proportional to 504,445.76, 756,746.40 and 171,944

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Solution

The fourth proportional to 504,445.76, 756,746.40 and 171,944 is: 257,942.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,445.76 : 756,746.40 = 171,944 : x
  2. Step 2: Convert to fraction form
    504,445.76/756,746.40 = 171,944/x
  3. Step 3: Cross multiply
    504,445.76x = 756,746.40 × 171,944
  4. Step 4: Simplify right side
    504,445.76x = 130,118,003,001.60
  5. Step 5: Solve for x
    x = 130,118,003,001.60/504,445.76
  6. Step 6: Final answer
    x = 257,942.51

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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.