Home / 1,277,255.56-1,915,883.34-519,509.28

Finding the Fourth Proportional to 1,277,255.56, 1,915,883.34 and 519,509.28

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Solution

The fourth proportional to 1,277,255.56, 1,915,883.34 and 519,509.28 is: 779,263.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,255.56 : 1,915,883.34 = 519,509.28 : x
  2. Step 2: Convert to fraction form
    1,277,255.56/1,915,883.34 = 519,509.28/x
  3. Step 3: Cross multiply
    1,277,255.56x = 1,915,883.34 × 519,509.28
  4. Step 4: Simplify right side
    1,277,255.56x = 995,319,174,527.40
  5. Step 5: Solve for x
    x = 995,319,174,527.40/1,277,255.56
  6. Step 6: Final answer
    x = 779,263.92

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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.