Home / 911,275.44-1,257,555.08-503,405.28

Finding the Fourth Proportional to 911,275.44, 1,257,555.08 and 503,405.28

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Solution

The fourth proportional to 911,275.44, 1,257,555.08 and 503,405.28 is: 694,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,275.44 : 1,257,555.08 = 503,405.28 : x
  2. Step 2: Convert to fraction form
    911,275.44/1,257,555.08 = 503,405.28/x
  3. Step 3: Cross multiply
    911,275.44x = 1,257,555.08 × 503,405.28
  4. Step 4: Simplify right side
    911,275.44x = 633,059,867,162.82
  5. Step 5: Solve for x
    x = 633,059,867,162.82/911,275.44
  6. Step 6: Final answer
    x = 694,696.51

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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.