Home / 1,105,132.76-1,525,171.74-621,669.08

Finding the Fourth Proportional to 1,105,132.76, 1,525,171.74 and 621,669.08

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Solution

The fourth proportional to 1,105,132.76, 1,525,171.74 and 621,669.08 is: 857,953.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,132.76 : 1,525,171.74 = 621,669.08 : x
  2. Step 2: Convert to fraction form
    1,105,132.76/1,525,171.74 = 621,669.08/x
  3. Step 3: Cross multiply
    1,105,132.76x = 1,525,171.74 × 621,669.08
  4. Step 4: Simplify right side
    1,105,132.76x = 948,152,112,447.80
  5. Step 5: Solve for x
    x = 948,152,112,447.80/1,105,132.76
  6. Step 6: Final answer
    x = 857,953.13

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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.