Home / 913,391.21-1,260,482.19-505,521.11

Finding the Fourth Proportional to 913,391.21, 1,260,482.19 and 505,521.11

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Solution

The fourth proportional to 913,391.21, 1,260,482.19 and 505,521.11 is: 697,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,391.21 : 1,260,482.19 = 505,521.11 : x
  2. Step 2: Convert to fraction form
    913,391.21/1,260,482.19 = 505,521.11/x
  3. Step 3: Cross multiply
    913,391.21x = 1,260,482.19 × 505,521.11
  4. Step 4: Simplify right side
    913,391.21x = 637,200,355,824.03
  5. Step 5: Solve for x
    x = 637,200,355,824.03/913,391.21
  6. Step 6: Final answer
    x = 697,620.42

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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.