Home / 629,011.27-868,012.75-384,405.26

Finding the Fourth Proportional to 629,011.27, 868,012.75 and 384,405.26

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Solution

The fourth proportional to 629,011.27, 868,012.75 and 384,405.26 is: 530,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,011.27 : 868,012.75 = 384,405.26 : x
  2. Step 2: Convert to fraction form
    629,011.27/868,012.75 = 384,405.26/x
  3. Step 3: Cross multiply
    629,011.27x = 868,012.75 × 384,405.26
  4. Step 4: Simplify right side
    629,011.27x = 333,668,662,987.51
  5. Step 5: Solve for x
    x = 333,668,662,987.51/629,011.27
  6. Step 6: Final answer
    x = 530,465.32

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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.