Home / 1,105,340.07-1,525,260.42-621,894.54

Finding the Fourth Proportional to 1,105,340.07, 1,525,260.42 and 621,894.54

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Solution

The fourth proportional to 1,105,340.07, 1,525,260.42 and 621,894.54 is: 858,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,340.07 : 1,525,260.42 = 621,894.54 : x
  2. Step 2: Convert to fraction form
    1,105,340.07/1,525,260.42 = 621,894.54/x
  3. Step 3: Cross multiply
    1,105,340.07x = 1,525,260.42 × 621,894.54
  4. Step 4: Simplify right side
    1,105,340.07x = 948,551,127,276.11
  5. Step 5: Solve for x
    x = 948,551,127,276.11/1,105,340.07
  6. Step 6: Final answer
    x = 858,153.21

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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.