Home / 912,653.40-1,369,044.90-281,566.20

Finding the Fourth Proportional to 912,653.40, 1,369,044.90 and 281,566.20

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Solution

The fourth proportional to 912,653.40, 1,369,044.90 and 281,566.20 is: 422,369.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,653.40 : 1,369,044.90 = 281,566.20 : x
  2. Step 2: Convert to fraction form
    912,653.40/1,369,044.90 = 281,566.20/x
  3. Step 3: Cross multiply
    912,653.40x = 1,369,044.90 × 281,566.20
  4. Step 4: Simplify right side
    912,653.40x = 385,476,770,122.38
  5. Step 5: Solve for x
    x = 385,476,770,122.38/912,653.40
  6. Step 6: Final answer
    x = 422,369.29

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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.