Home / 859,764.22-1,186,380.42-497,133.21

Finding the Fourth Proportional to 859,764.22, 1,186,380.42 and 497,133.21

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Solution

The fourth proportional to 859,764.22, 1,186,380.42 and 497,133.21 is: 685,989.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,764.22 : 1,186,380.42 = 497,133.21 : x
  2. Step 2: Convert to fraction form
    859,764.22/1,186,380.42 = 497,133.21/x
  3. Step 3: Cross multiply
    859,764.22x = 1,186,380.42 × 497,133.21
  4. Step 4: Simplify right side
    859,764.22x = 589,789,106,475.75
  5. Step 5: Solve for x
    x = 589,789,106,475.75/859,764.22
  6. Step 6: Final answer
    x = 685,989.36

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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.