Home / 738,985.14-1,019,799.04-399,453.39

Finding the Fourth Proportional to 738,985.14, 1,019,799.04 and 399,453.39

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Solution

The fourth proportional to 738,985.14, 1,019,799.04 and 399,453.39 is: 551,245.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,985.14 : 1,019,799.04 = 399,453.39 : x
  2. Step 2: Convert to fraction form
    738,985.14/1,019,799.04 = 399,453.39/x
  3. Step 3: Cross multiply
    738,985.14x = 1,019,799.04 × 399,453.39
  4. Step 4: Simplify right side
    738,985.14x = 407,362,183,646.75
  5. Step 5: Solve for x
    x = 407,362,183,646.75/738,985.14
  6. Step 6: Final answer
    x = 551,245.43

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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.