Home / 738,986.09-1,019,800.34-399,454.34

Finding the Fourth Proportional to 738,986.09, 1,019,800.34 and 399,454.34

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Solution

The fourth proportional to 738,986.09, 1,019,800.34 and 399,454.34 is: 551,246.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,986.09 : 1,019,800.34 = 399,454.34 : x
  2. Step 2: Convert to fraction form
    738,986.09/1,019,800.34 = 399,454.34/x
  3. Step 3: Cross multiply
    738,986.09x = 1,019,800.34 × 399,454.34
  4. Step 4: Simplify right side
    738,986.09x = 407,363,664,650.20
  5. Step 5: Solve for x
    x = 407,363,664,650.20/738,986.09
  6. Step 6: Final answer
    x = 551,246.73

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Double scale
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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.