Home / 919,970.52-1,269,559.16-512,063.59

Finding the Fourth Proportional to 919,970.52, 1,269,559.16 and 512,063.59

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Solution

The fourth proportional to 919,970.52, 1,269,559.16 and 512,063.59 is: 706,647.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,970.52 : 1,269,559.16 = 512,063.59 : x
  2. Step 2: Convert to fraction form
    919,970.52/1,269,559.16 = 512,063.59/x
  3. Step 3: Cross multiply
    919,970.52x = 1,269,559.16 × 512,063.59
  4. Step 4: Simplify right side
    919,970.52x = 650,095,021,186.98
  5. Step 5: Solve for x
    x = 650,095,021,186.98/919,970.52
  6. Step 6: Final answer
    x = 706,647.67

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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.