Home / 883,755.60-1,219,721.24-521,219.36

Finding the Fourth Proportional to 883,755.60, 1,219,721.24 and 521,219.36

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Solution

The fourth proportional to 883,755.60, 1,219,721.24 and 521,219.36 is: 719,364.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,755.60 : 1,219,721.24 = 521,219.36 : x
  2. Step 2: Convert to fraction form
    883,755.60/1,219,721.24 = 521,219.36/x
  3. Step 3: Cross multiply
    883,755.60x = 1,219,721.24 × 521,219.36
  4. Step 4: Simplify right side
    883,755.60x = 635,742,324,091.21
  5. Step 5: Solve for x
    x = 635,742,324,091.21/883,755.60
  6. Step 6: Final answer
    x = 719,364.41

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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.