Home / 606,935.10-911,386.80-439,629.60

Finding the Fourth Proportional to 606,935.10, 911,386.80 and 439,629.60

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Solution

The fourth proportional to 606,935.10, 911,386.80 and 439,629.60 is: 660,157.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,935.10 : 911,386.80 = 439,629.60 : x
  2. Step 2: Convert to fraction form
    606,935.10/911,386.80 = 439,629.60/x
  3. Step 3: Cross multiply
    606,935.10x = 911,386.80 × 439,629.60
  4. Step 4: Simplify right side
    606,935.10x = 400,672,614,329.28
  5. Step 5: Solve for x
    x = 400,672,614,329.28/606,935.10
  6. Step 6: Final answer
    x = 660,157.26

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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.