Home / 1,272,826.90-1,909,769.07-515,203.93

Finding the Fourth Proportional to 1,272,826.90, 1,909,769.07 and 515,203.93

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Solution

The fourth proportional to 1,272,826.90, 1,909,769.07 and 515,203.93 is: 773,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,826.90 : 1,909,769.07 = 515,203.93 : x
  2. Step 2: Convert to fraction form
    1,272,826.90/1,909,769.07 = 515,203.93/x
  3. Step 3: Cross multiply
    1,272,826.90x = 1,909,769.07 × 515,203.93
  4. Step 4: Simplify right side
    1,272,826.90x = 983,920,518,131.58
  5. Step 5: Solve for x
    x = 983,920,518,131.58/1,272,826.90
  6. Step 6: Final answer
    x = 773,019.90

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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.