Home / 840,216.80-1,261,246.80-525,029.60

Finding the Fourth Proportional to 840,216.80, 1,261,246.80 and 525,029.60

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Solution

The fourth proportional to 840,216.80, 1,261,246.80 and 525,029.60 is: 788,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,216.80 : 1,261,246.80 = 525,029.60 : x
  2. Step 2: Convert to fraction form
    840,216.80/1,261,246.80 = 525,029.60/x
  3. Step 3: Cross multiply
    840,216.80x = 1,261,246.80 × 525,029.60
  4. Step 4: Simplify right side
    840,216.80x = 662,191,902,905.28
  5. Step 5: Solve for x
    x = 662,191,902,905.28/840,216.80
  6. Step 6: Final answer
    x = 788,120.28

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1.5x scale

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.