Home / 910,630.80-1,256,835-543,131.49

Finding the Fourth Proportional to 910,630.80, 1,256,835 and 543,131.49

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Solution

The fourth proportional to 910,630.80, 1,256,835 and 543,131.49 is: 749,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,630.80 : 1,256,835 = 543,131.49 : x
  2. Step 2: Convert to fraction form
    910,630.80/1,256,835 = 543,131.49/x
  3. Step 3: Cross multiply
    910,630.80x = 1,256,835 × 543,131.49
  4. Step 4: Simplify right side
    910,630.80x = 682,626,666,234.15
  5. Step 5: Solve for x
    x = 682,626,666,234.15/910,630.80
  6. Step 6: Final answer
    x = 749,619.57

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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.