Home / 629,760.18-869,036.26-357,790.34

Finding the Fourth Proportional to 629,760.18, 869,036.26 and 357,790.34

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Solution

The fourth proportional to 629,760.18, 869,036.26 and 357,790.34 is: 493,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,760.18 : 869,036.26 = 357,790.34 : x
  2. Step 2: Convert to fraction form
    629,760.18/869,036.26 = 357,790.34/x
  3. Step 3: Cross multiply
    629,760.18x = 869,036.26 × 357,790.34
  4. Step 4: Simplify right side
    629,760.18x = 310,932,778,937.73
  5. Step 5: Solve for x
    x = 310,932,778,937.73/629,760.18
  6. Step 6: Final answer
    x = 493,732.04

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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.