Home / 1,189,197.64-1,641,097.04-645,333.28

Finding the Fourth Proportional to 1,189,197.64, 1,641,097.04 and 645,333.28

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Solution

The fourth proportional to 1,189,197.64, 1,641,097.04 and 645,333.28 is: 890,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,197.64 : 1,641,097.04 = 645,333.28 : x
  2. Step 2: Convert to fraction form
    1,189,197.64/1,641,097.04 = 645,333.28/x
  3. Step 3: Cross multiply
    1,189,197.64x = 1,641,097.04 × 645,333.28
  4. Step 4: Simplify right side
    1,189,197.64x = 1,059,054,541,153.25
  5. Step 5: Solve for x
    x = 1,059,054,541,153.25/1,189,197.64
  6. Step 6: Final answer
    x = 890,562.27

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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.