Home / 804,510.30-1,109,906.78-518,196.57

Finding the Fourth Proportional to 804,510.30, 1,109,906.78 and 518,196.57

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Solution

The fourth proportional to 804,510.30, 1,109,906.78 and 518,196.57 is: 714,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,510.30 : 1,109,906.78 = 518,196.57 : x
  2. Step 2: Convert to fraction form
    804,510.30/1,109,906.78 = 518,196.57/x
  3. Step 3: Cross multiply
    804,510.30x = 1,109,906.78 × 518,196.57
  4. Step 4: Simplify right side
    804,510.30x = 575,149,886,415.75
  5. Step 5: Solve for x
    x = 575,149,886,415.75/804,510.30
  6. Step 6: Final answer
    x = 714,906.80

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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.