Home / 919,216.54-1,268,000.77-551,598.58

Finding the Fourth Proportional to 919,216.54, 1,268,000.77 and 551,598.58

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Solution

The fourth proportional to 919,216.54, 1,268,000.77 and 551,598.58 is: 760,895.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,216.54 : 1,268,000.77 = 551,598.58 : x
  2. Step 2: Convert to fraction form
    919,216.54/1,268,000.77 = 551,598.58/x
  3. Step 3: Cross multiply
    919,216.54x = 1,268,000.77 × 551,598.58
  4. Step 4: Simplify right side
    919,216.54x = 699,427,415,072.91
  5. Step 5: Solve for x
    x = 699,427,415,072.91/919,216.54
  6. Step 6: Final answer
    x = 760,895.16

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Double scale
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1.5x scale

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.