Home / 319,598.20-478,814.10-194,793.40

Finding the Fourth Proportional to 319,598.20, 478,814.10 and 194,793.40

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Solution

The fourth proportional to 319,598.20, 478,814.10 and 194,793.40 is: 291,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,598.20 : 478,814.10 = 194,793.40 : x
  2. Step 2: Convert to fraction form
    319,598.20/478,814.10 = 194,793.40/x
  3. Step 3: Cross multiply
    319,598.20x = 478,814.10 × 194,793.40
  4. Step 4: Simplify right side
    319,598.20x = 93,269,826,506.94
  5. Step 5: Solve for x
    x = 93,269,826,506.94/319,598.20
  6. Step 6: Final answer
    x = 291,834.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.