Home / 629,186.40-868,246.56-357,218.64

Finding the Fourth Proportional to 629,186.40, 868,246.56 and 357,218.64

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Solution

The fourth proportional to 629,186.40, 868,246.56 and 357,218.64 is: 492,944.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,186.40 : 868,246.56 = 357,218.64 : x
  2. Step 2: Convert to fraction form
    629,186.40/868,246.56 = 357,218.64/x
  3. Step 3: Cross multiply
    629,186.40x = 868,246.56 × 357,218.64
  4. Step 4: Simplify right side
    629,186.40x = 310,153,855,347.88
  5. Step 5: Solve for x
    x = 310,153,855,347.88/629,186.40
  6. Step 6: Final answer
    x = 492,944.31

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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.