Home / 910,680.52-1,256,886.80-528,928.73

Finding the Fourth Proportional to 910,680.52, 1,256,886.80 and 528,928.73

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Solution

The fourth proportional to 910,680.52, 1,256,886.80 and 528,928.73 is: 730,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,680.52 : 1,256,886.80 = 528,928.73 : x
  2. Step 2: Convert to fraction form
    910,680.52/1,256,886.80 = 528,928.73/x
  3. Step 3: Cross multiply
    910,680.52x = 1,256,886.80 × 528,928.73
  4. Step 4: Simplify right side
    910,680.52x = 664,803,546,690.71
  5. Step 5: Solve for x
    x = 664,803,546,690.71/910,680.52
  6. Step 6: Final answer
    x = 730,007.43

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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.