Home / 1,205,194.64-1,663,164.04-661,339.53

Finding the Fourth Proportional to 1,205,194.64, 1,663,164.04 and 661,339.53

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Solution

The fourth proportional to 1,205,194.64, 1,663,164.04 and 661,339.53 is: 912,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,194.64 : 1,663,164.04 = 661,339.53 : x
  2. Step 2: Convert to fraction form
    1,205,194.64/1,663,164.04 = 661,339.53/x
  3. Step 3: Cross multiply
    1,205,194.64x = 1,663,164.04 × 661,339.53
  4. Step 4: Simplify right side
    1,205,194.64x = 1,099,916,121,219.80
  5. Step 5: Solve for x
    x = 1,099,916,121,219.80/1,205,194.64
  6. Step 6: Final answer
    x = 912,646.04

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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.