Home / 1,189,537.65-1,641,518.06-645,661.94

Finding the Fourth Proportional to 1,189,537.65, 1,641,518.06 and 645,661.94

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Solution

The fourth proportional to 1,189,537.65, 1,641,518.06 and 645,661.94 is: 890,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,537.65 : 1,641,518.06 = 645,661.94 : x
  2. Step 2: Convert to fraction form
    1,189,537.65/1,641,518.06 = 645,661.94/x
  3. Step 3: Cross multiply
    1,189,537.65x = 1,641,518.06 × 645,661.94
  4. Step 4: Simplify right side
    1,189,537.65x = 1,059,865,723,728.74
  5. Step 5: Solve for x
    x = 1,059,865,723,728.74/1,189,537.65
  6. Step 6: Final answer
    x = 890,989.64

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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.