Home / 626,538.30-864,583.50-354,661.39

Finding the Fourth Proportional to 626,538.30, 864,583.50 and 354,661.39

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Solution

The fourth proportional to 626,538.30, 864,583.50 and 354,661.39 is: 489,410.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,538.30 : 864,583.50 = 354,661.39 : x
  2. Step 2: Convert to fraction form
    626,538.30/864,583.50 = 354,661.39/x
  3. Step 3: Cross multiply
    626,538.30x = 864,583.50 × 354,661.39
  4. Step 4: Simplify right side
    626,538.30x = 306,634,385,881.07
  5. Step 5: Solve for x
    x = 306,634,385,881.07/626,538.30
  6. Step 6: Final answer
    x = 489,410.44

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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.