Home / 293,078.20-439,617.30-265,959.40

Finding the Fourth Proportional to 293,078.20, 439,617.30 and 265,959.40

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Solution

The fourth proportional to 293,078.20, 439,617.30 and 265,959.40 is: 398,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,078.20 : 439,617.30 = 265,959.40 : x
  2. Step 2: Convert to fraction form
    293,078.20/439,617.30 = 265,959.40/x
  3. Step 3: Cross multiply
    293,078.20x = 439,617.30 × 265,959.40
  4. Step 4: Simplify right side
    293,078.20x = 116,920,353,337.62
  5. Step 5: Solve for x
    x = 116,920,353,337.62/293,078.20
  6. Step 6: Final answer
    x = 398,939.10

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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.