Home / 885,451.95-1,221,917.97-503,478.69

Finding the Fourth Proportional to 885,451.95, 1,221,917.97 and 503,478.69

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Solution

The fourth proportional to 885,451.95, 1,221,917.97 and 503,478.69 is: 694,797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,451.95 : 1,221,917.97 = 503,478.69 : x
  2. Step 2: Convert to fraction form
    885,451.95/1,221,917.97 = 503,478.69/x
  3. Step 3: Cross multiply
    885,451.95x = 1,221,917.97 × 503,478.69
  4. Step 4: Simplify right side
    885,451.95x = 615,209,658,823.06
  5. Step 5: Solve for x
    x = 615,209,658,823.06/885,451.95
  6. Step 6: Final answer
    x = 694,797.34

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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.