Home / 1,189,534-1,641,558.56-645,669.92

Finding the Fourth Proportional to 1,189,534, 1,641,558.56 and 645,669.92

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Solution

The fourth proportional to 1,189,534, 1,641,558.56 and 645,669.92 is: 891,025.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,534 : 1,641,558.56 = 645,669.92 : x
  2. Step 2: Convert to fraction form
    1,189,534/1,641,558.56 = 645,669.92/x
  3. Step 3: Cross multiply
    1,189,534x = 1,641,558.56 × 645,669.92
  4. Step 4: Simplify right side
    1,189,534x = 1,059,904,984,110.52
  5. Step 5: Solve for x
    x = 1,059,904,984,110.52/1,189,534
  6. Step 6: Final answer
    x = 891,025.38

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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.