Home / 907,840.80-1,361,761.20-571,917.60

Finding the Fourth Proportional to 907,840.80, 1,361,761.20 and 571,917.60

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Solution

The fourth proportional to 907,840.80, 1,361,761.20 and 571,917.60 is: 857,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,840.80 : 1,361,761.20 = 571,917.60 : x
  2. Step 2: Convert to fraction form
    907,840.80/1,361,761.20 = 571,917.60/x
  3. Step 3: Cross multiply
    907,840.80x = 1,361,761.20 × 571,917.60
  4. Step 4: Simplify right side
    907,840.80x = 778,815,197,277.12
  5. Step 5: Solve for x
    x = 778,815,197,277.12/907,840.80
  6. Step 6: Final answer
    x = 857,876.40

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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.