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Finding the Fourth Proportional to 626,924.70, 865,141.45 and 368,818.27

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Solution

The fourth proportional to 626,924.70, 865,141.45 and 368,818.27 is: 508,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,924.70 : 865,141.45 = 368,818.27 : x
  2. Step 2: Convert to fraction form
    626,924.70/865,141.45 = 368,818.27/x
  3. Step 3: Cross multiply
    626,924.70x = 865,141.45 × 368,818.27
  4. Step 4: Simplify right side
    626,924.70x = 319,079,969,809.39
  5. Step 5: Solve for x
    x = 319,079,969,809.39/626,924.70
  6. Step 6: Final answer
    x = 508,960.60

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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.