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Finding the Fourth Proportional to 468,768.57, 646,900.65 and 253,908.63

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Solution

The fourth proportional to 468,768.57, 646,900.65 and 253,908.63 is: 350,393.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,768.57 : 646,900.65 = 253,908.63 : x
  2. Step 2: Convert to fraction form
    468,768.57/646,900.65 = 253,908.63/x
  3. Step 3: Cross multiply
    468,768.57x = 646,900.65 × 253,908.63
  4. Step 4: Simplify right side
    468,768.57x = 164,253,658,714.38
  5. Step 5: Solve for x
    x = 164,253,658,714.38/468,768.57
  6. Step 6: Final answer
    x = 350,393.93

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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.