Home / 629,897.85-869,221.58-357,928.00

Finding the Fourth Proportional to 629,897.85, 869,221.58 and 357,928.00

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Solution

The fourth proportional to 629,897.85, 869,221.58 and 357,928.00 is: 493,919.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,897.85 : 869,221.58 = 357,928.00 : x
  2. Step 2: Convert to fraction form
    629,897.85/869,221.58 = 357,928.00/x
  3. Step 3: Cross multiply
    629,897.85x = 869,221.58 × 357,928.00
  4. Step 4: Simplify right side
    629,897.85x = 311,118,739,736.89
  5. Step 5: Solve for x
    x = 311,118,739,736.89/629,897.85
  6. Step 6: Final answer
    x = 493,919.35

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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.