Home / 656,321.38-984,482.06-213,089.38

Finding the Fourth Proportional to 656,321.38, 984,482.06 and 213,089.38

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Solution

The fourth proportional to 656,321.38, 984,482.06 and 213,089.38 is: 319,634.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,321.38 : 984,482.06 = 213,089.38 : x
  2. Step 2: Convert to fraction form
    656,321.38/984,482.06 = 213,089.38/x
  3. Step 3: Cross multiply
    656,321.38x = 984,482.06 × 213,089.38
  4. Step 4: Simplify right side
    656,321.38x = 209,782,671,786.52
  5. Step 5: Solve for x
    x = 209,782,671,786.52/656,321.38
  6. Step 6: Final answer
    x = 319,634.07

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.