Home / 1,105,135.53-1,525,071.83-621,700.53

Finding the Fourth Proportional to 1,105,135.53, 1,525,071.83 and 621,700.53

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Solution

The fourth proportional to 1,105,135.53, 1,525,071.83 and 621,700.53 is: 857,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,135.53 : 1,525,071.83 = 621,700.53 : x
  2. Step 2: Convert to fraction form
    1,105,135.53/1,525,071.83 = 621,700.53/x
  3. Step 3: Cross multiply
    1,105,135.53x = 1,525,071.83 × 621,700.53
  4. Step 4: Simplify right side
    1,105,135.53x = 948,137,961,890.57
  5. Step 5: Solve for x
    x = 948,137,961,890.57/1,105,135.53
  6. Step 6: Final answer
    x = 857,938.18

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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.