Home / 638,558.64-881,208.52-352,094.45

Finding the Fourth Proportional to 638,558.64, 881,208.52 and 352,094.45

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Solution

The fourth proportional to 638,558.64, 881,208.52 and 352,094.45 is: 485,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,558.64 : 881,208.52 = 352,094.45 : x
  2. Step 2: Convert to fraction form
    638,558.64/881,208.52 = 352,094.45/x
  3. Step 3: Cross multiply
    638,558.64x = 881,208.52 × 352,094.45
  4. Step 4: Simplify right side
    638,558.64x = 310,268,623,898.44
  5. Step 5: Solve for x
    x = 310,268,623,898.44/638,558.64
  6. Step 6: Final answer
    x = 485,889.01

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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.