Home / 629,743.64-868,554.78-403,410.20

Finding the Fourth Proportional to 629,743.64, 868,554.78 and 403,410.20

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Solution

The fourth proportional to 629,743.64, 868,554.78 and 403,410.20 is: 556,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,743.64 : 868,554.78 = 403,410.20 : x
  2. Step 2: Convert to fraction form
    629,743.64/868,554.78 = 403,410.20/x
  3. Step 3: Cross multiply
    629,743.64x = 868,554.78 × 403,410.20
  4. Step 4: Simplify right side
    629,743.64x = 350,383,857,510.76
  5. Step 5: Solve for x
    x = 350,383,857,510.76/629,743.64
  6. Step 6: Final answer
    x = 556,391.26

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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.