Home / 935,868.90-1,291,657.89-528,086.36

Finding the Fourth Proportional to 935,868.90, 1,291,657.89 and 528,086.36

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Solution

The fourth proportional to 935,868.90, 1,291,657.89 and 528,086.36 is: 728,848.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,868.90 : 1,291,657.89 = 528,086.36 : x
  2. Step 2: Convert to fraction form
    935,868.90/1,291,657.89 = 528,086.36/x
  3. Step 3: Cross multiply
    935,868.90x = 1,291,657.89 × 528,086.36
  4. Step 4: Simplify right side
    935,868.90x = 682,106,907,037.09
  5. Step 5: Solve for x
    x = 682,106,907,037.09/935,868.90
  6. Step 6: Final answer
    x = 728,848.78

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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.