Home / 1,189,477.17-1,641,474.38-645,612.93

Finding the Fourth Proportional to 1,189,477.17, 1,641,474.38 and 645,612.93

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Solution

The fourth proportional to 1,189,477.17, 1,641,474.38 and 645,612.93 is: 890,943.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,477.17 : 1,641,474.38 = 645,612.93 : x
  2. Step 2: Convert to fraction form
    1,189,477.17/1,641,474.38 = 645,612.93/x
  3. Step 3: Cross multiply
    1,189,477.17x = 1,641,474.38 × 645,612.93
  4. Step 4: Simplify right side
    1,189,477.17x = 1,059,757,085,605.77
  5. Step 5: Solve for x
    x = 1,059,757,085,605.77/1,189,477.17
  6. Step 6: Final answer
    x = 890,943.61

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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.