Home / 819,100.54-1,130,415.51-496,824.22

Finding the Fourth Proportional to 819,100.54, 1,130,415.51 and 496,824.22

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Solution

The fourth proportional to 819,100.54, 1,130,415.51 and 496,824.22 is: 685,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,100.54 : 1,130,415.51 = 496,824.22 : x
  2. Step 2: Convert to fraction form
    819,100.54/1,130,415.51 = 496,824.22/x
  3. Step 3: Cross multiply
    819,100.54x = 1,130,415.51 × 496,824.22
  4. Step 4: Simplify right side
    819,100.54x = 561,617,804,031.65
  5. Step 5: Solve for x
    x = 561,617,804,031.65/819,100.54
  6. Step 6: Final answer
    x = 685,651.85

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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.