Home / 639,186.07-881,361.54-522,535.46

Finding the Fourth Proportional to 639,186.07, 881,361.54 and 522,535.46

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Solution

The fourth proportional to 639,186.07, 881,361.54 and 522,535.46 is: 720,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,186.07 : 881,361.54 = 522,535.46 : x
  2. Step 2: Convert to fraction form
    639,186.07/881,361.54 = 522,535.46/x
  3. Step 3: Cross multiply
    639,186.07x = 881,361.54 × 522,535.46
  4. Step 4: Simplify right side
    639,186.07x = 460,542,657,730.21
  5. Step 5: Solve for x
    x = 460,542,657,730.21/639,186.07
  6. Step 6: Final answer
    x = 720,514.23

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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.