Home / 823,128.85-1,240,862.74-768,262.51

Finding the Fourth Proportional to 823,128.85, 1,240,862.74 and 768,262.51

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Solution

The fourth proportional to 823,128.85, 1,240,862.74 and 768,262.51 is: 1,158,152.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,128.85 : 1,240,862.74 = 768,262.51 : x
  2. Step 2: Convert to fraction form
    823,128.85/1,240,862.74 = 768,262.51/x
  3. Step 3: Cross multiply
    823,128.85x = 1,240,862.74 × 768,262.51
  4. Step 4: Simplify right side
    823,128.85x = 953,308,323,197.88
  5. Step 5: Solve for x
    x = 953,308,323,197.88/823,128.85
  6. Step 6: Final answer
    x = 1,158,152.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.