Home / 1,105,194.52-1,525,106.10-621,780.04

Finding the Fourth Proportional to 1,105,194.52, 1,525,106.10 and 621,780.04

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Solution

The fourth proportional to 1,105,194.52, 1,525,106.10 and 621,780.04 is: 858,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,194.52 : 1,525,106.10 = 621,780.04 : x
  2. Step 2: Convert to fraction form
    1,105,194.52/1,525,106.10 = 621,780.04/x
  3. Step 3: Cross multiply
    1,105,194.52x = 1,525,106.10 × 621,780.04
  4. Step 4: Simplify right side
    1,105,194.52x = 948,280,531,862.24
  5. Step 5: Solve for x
    x = 948,280,531,862.24/1,105,194.52
  6. Step 6: Final answer
    x = 858,021.38

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1.5x scale

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.