Home / 1,529,615.72-2,111,133.90-885,391.13

Finding the Fourth Proportional to 1,529,615.72, 2,111,133.90 and 885,391.13

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Solution

The fourth proportional to 1,529,615.72, 2,111,133.90 and 885,391.13 is: 1,221,992.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529,615.72 : 2,111,133.90 = 885,391.13 : x
  2. Step 2: Convert to fraction form
    1,529,615.72/2,111,133.90 = 885,391.13/x
  3. Step 3: Cross multiply
    1,529,615.72x = 2,111,133.90 × 885,391.13
  4. Step 4: Simplify right side
    1,529,615.72x = 1,869,179,218,746.64
  5. Step 5: Solve for x
    x = 1,869,179,218,746.64/1,529,615.72
  6. Step 6: Final answer
    x = 1,221,992.69

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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.