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Finding the Fourth Proportional to 626,810.58, 864,951.35 and 354,816.11

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Solution

The fourth proportional to 626,810.58, 864,951.35 and 354,816.11 is: 489,619.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,810.58 : 864,951.35 = 354,816.11 : x
  2. Step 2: Convert to fraction form
    626,810.58/864,951.35 = 354,816.11/x
  3. Step 3: Cross multiply
    626,810.58x = 864,951.35 × 354,816.11
  4. Step 4: Simplify right side
    626,810.58x = 306,898,673,734.55
  5. Step 5: Solve for x
    x = 306,898,673,734.55/626,810.58
  6. Step 6: Final answer
    x = 489,619.49

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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.