Home / 443,979.06-612,483.33-290,976.54

Finding the Fourth Proportional to 443,979.06, 612,483.33 and 290,976.54

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Solution

The fourth proportional to 443,979.06, 612,483.33 and 290,976.54 is: 401,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,979.06 : 612,483.33 = 290,976.54 : x
  2. Step 2: Convert to fraction form
    443,979.06/612,483.33 = 290,976.54/x
  3. Step 3: Cross multiply
    443,979.06x = 612,483.33 × 290,976.54
  4. Step 4: Simplify right side
    443,979.06x = 178,218,280,171.08
  5. Step 5: Solve for x
    x = 178,218,280,171.08/443,979.06
  6. Step 6: Final answer
    x = 401,411.45

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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.