Home / 629,714.19-869,005.83-357,782.45

Finding the Fourth Proportional to 629,714.19, 869,005.83 and 357,782.45

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Solution

The fourth proportional to 629,714.19, 869,005.83 and 357,782.45 is: 493,739.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,714.19 : 869,005.83 = 357,782.45 : x
  2. Step 2: Convert to fraction form
    629,714.19/869,005.83 = 357,782.45/x
  3. Step 3: Cross multiply
    629,714.19x = 869,005.83 × 357,782.45
  4. Step 4: Simplify right side
    629,714.19x = 310,915,031,918.34
  5. Step 5: Solve for x
    x = 310,915,031,918.34/629,714.19
  6. Step 6: Final answer
    x = 493,739.91

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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.