Home / 1,189,741.64-1,641,844.53-645,877.08

Finding the Fourth Proportional to 1,189,741.64, 1,641,844.53 and 645,877.08

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Solution

The fourth proportional to 1,189,741.64, 1,641,844.53 and 645,877.08 is: 891,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,741.64 : 1,641,844.53 = 645,877.08 : x
  2. Step 2: Convert to fraction form
    1,189,741.64/1,641,844.53 = 645,877.08/x
  3. Step 3: Cross multiply
    1,189,741.64x = 1,641,844.53 × 645,877.08
  4. Step 4: Simplify right side
    1,189,741.64x = 1,060,429,750,850.37
  5. Step 5: Solve for x
    x = 1,060,429,750,850.37/1,189,741.64
  6. Step 6: Final answer
    x = 891,310.95

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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.