Home / 859,764.22-1,186,380.41-497,133.20

Finding the Fourth Proportional to 859,764.22, 1,186,380.41 and 497,133.20

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Solution

The fourth proportional to 859,764.22, 1,186,380.41 and 497,133.20 is: 685,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,764.22 : 1,186,380.41 = 497,133.20 : x
  2. Step 2: Convert to fraction form
    859,764.22/1,186,380.41 = 497,133.20/x
  3. Step 3: Cross multiply
    859,764.22x = 1,186,380.41 × 497,133.20
  4. Step 4: Simplify right side
    859,764.22x = 589,789,089,640.61
  5. Step 5: Solve for x
    x = 589,789,089,640.61/859,764.22
  6. Step 6: Final answer
    x = 685,989.34

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Double scale
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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.