Home / 903,936.40-1,247,446.80-521,996.56

Finding the Fourth Proportional to 903,936.40, 1,247,446.80 and 521,996.56

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Solution

The fourth proportional to 903,936.40, 1,247,446.80 and 521,996.56 is: 720,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,936.40 : 1,247,446.80 = 521,996.56 : x
  2. Step 2: Convert to fraction form
    903,936.40/1,247,446.80 = 521,996.56/x
  3. Step 3: Cross multiply
    903,936.40x = 1,247,446.80 × 521,996.56
  4. Step 4: Simplify right side
    903,936.40x = 651,162,938,383.01
  5. Step 5: Solve for x
    x = 651,162,938,383.01/903,936.40
  6. Step 6: Final answer
    x = 720,363.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.