Home / 911,518.86-1,257,969.63-503,656.41

Finding the Fourth Proportional to 911,518.86, 1,257,969.63 and 503,656.41

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Solution

The fourth proportional to 911,518.86, 1,257,969.63 and 503,656.41 is: 695,086.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,518.86 : 1,257,969.63 = 503,656.41 : x
  2. Step 2: Convert to fraction form
    911,518.86/1,257,969.63 = 503,656.41/x
  3. Step 3: Cross multiply
    911,518.86x = 1,257,969.63 × 503,656.41
  4. Step 4: Simplify right side
    911,518.86x = 633,584,467,734.83
  5. Step 5: Solve for x
    x = 633,584,467,734.83/911,518.86
  6. Step 6: Final answer
    x = 695,086.51

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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.