Home / 639,280.71-957,867.35-573,359.09

Finding the Fourth Proportional to 639,280.71, 957,867.35 and 573,359.09

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Solution

The fourth proportional to 639,280.71, 957,867.35 and 573,359.09 is: 859,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,280.71 : 957,867.35 = 573,359.09 : x
  2. Step 2: Convert to fraction form
    639,280.71/957,867.35 = 573,359.09/x
  3. Step 3: Cross multiply
    639,280.71x = 957,867.35 × 573,359.09
  4. Step 4: Simplify right side
    639,280.71x = 549,201,944,480.58
  5. Step 5: Solve for x
    x = 549,201,944,480.58/639,280.71
  6. Step 6: Final answer
    x = 859,093.57

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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.