Home / 1,386,592.84-2,079,889.90-500,128.84

Finding the Fourth Proportional to 1,386,592.84, 2,079,889.90 and 500,128.84

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Solution

The fourth proportional to 1,386,592.84, 2,079,889.90 and 500,128.84 is: 750,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,592.84 : 2,079,889.90 = 500,128.84 : x
  2. Step 2: Convert to fraction form
    1,386,592.84/2,079,889.90 = 500,128.84/x
  3. Step 3: Cross multiply
    1,386,592.84x = 2,079,889.90 × 500,128.84
  4. Step 4: Simplify right side
    1,386,592.84x = 1,040,212,923,014.72
  5. Step 5: Solve for x
    x = 1,040,212,923,014.72/1,386,592.84
  6. Step 6: Final answer
    x = 750,193.49

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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.