Home / 839,291.92-1,259,310.02-439,837.72

Finding the Fourth Proportional to 839,291.92, 1,259,310.02 and 439,837.72

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Solution

The fourth proportional to 839,291.92, 1,259,310.02 and 439,837.72 is: 659,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,291.92 : 1,259,310.02 = 439,837.72 : x
  2. Step 2: Convert to fraction form
    839,291.92/1,259,310.02 = 439,837.72/x
  3. Step 3: Cross multiply
    839,291.92x = 1,259,310.02 × 439,837.72
  4. Step 4: Simplify right side
    839,291.92x = 553,892,047,969.95
  5. Step 5: Solve for x
    x = 553,892,047,969.95/839,291.92
  6. Step 6: Final answer
    x = 659,951.60

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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.