Home / 930,917.70-1,396,376.55-458,525.70

Finding the Fourth Proportional to 930,917.70, 1,396,376.55 and 458,525.70

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Solution

The fourth proportional to 930,917.70, 1,396,376.55 and 458,525.70 is: 687,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,917.70 : 1,396,376.55 = 458,525.70 : x
  2. Step 2: Convert to fraction form
    930,917.70/1,396,376.55 = 458,525.70/x
  3. Step 3: Cross multiply
    930,917.70x = 1,396,376.55 × 458,525.70
  4. Step 4: Simplify right side
    930,917.70x = 640,274,535,052.34
  5. Step 5: Solve for x
    x = 640,274,535,052.34/930,917.70
  6. Step 6: Final answer
    x = 687,788.55

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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.