Home / 644,815.40-967,223.10-201,583.40

Finding the Fourth Proportional to 644,815.40, 967,223.10 and 201,583.40

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Solution

The fourth proportional to 644,815.40, 967,223.10 and 201,583.40 is: 302,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,815.40 : 967,223.10 = 201,583.40 : x
  2. Step 2: Convert to fraction form
    644,815.40/967,223.10 = 201,583.40/x
  3. Step 3: Cross multiply
    644,815.40x = 967,223.10 × 201,583.40
  4. Step 4: Simplify right side
    644,815.40x = 194,976,121,056.54
  5. Step 5: Solve for x
    x = 194,976,121,056.54/644,815.40
  6. Step 6: Final answer
    x = 302,375.10

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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.