Home / 589,280.39-884,360.82-399,290.30

Finding the Fourth Proportional to 589,280.39, 884,360.82 and 399,290.30

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Solution

The fourth proportional to 589,280.39, 884,360.82 and 399,290.30 is: 599,233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,280.39 : 884,360.82 = 399,290.30 : x
  2. Step 2: Convert to fraction form
    589,280.39/884,360.82 = 399,290.30/x
  3. Step 3: Cross multiply
    589,280.39x = 884,360.82 × 399,290.30
  4. Step 4: Simplify right side
    589,280.39x = 353,116,697,126.05
  5. Step 5: Solve for x
    x = 353,116,697,126.05/589,280.39
  6. Step 6: Final answer
    x = 599,233.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.