Home / 921,940.65-1,272,185.12-514,004.13

Finding the Fourth Proportional to 921,940.65, 1,272,185.12 and 514,004.13

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Solution

The fourth proportional to 921,940.65, 1,272,185.12 and 514,004.13 is: 709,273.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,940.65 : 1,272,185.12 = 514,004.13 : x
  2. Step 2: Convert to fraction form
    921,940.65/1,272,185.12 = 514,004.13/x
  3. Step 3: Cross multiply
    921,940.65x = 1,272,185.12 × 514,004.13
  4. Step 4: Simplify right side
    921,940.65x = 653,908,407,089.56
  5. Step 5: Solve for x
    x = 653,908,407,089.56/921,940.65
  6. Step 6: Final answer
    x = 709,273.86

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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.