Home / 499,298.15-689,035.62-284,434.85

Finding the Fourth Proportional to 499,298.15, 689,035.62 and 284,434.85

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Solution

The fourth proportional to 499,298.15, 689,035.62 and 284,434.85 is: 392,522.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,298.15 : 689,035.62 = 284,434.85 : x
  2. Step 2: Convert to fraction form
    499,298.15/689,035.62 = 284,434.85/x
  3. Step 3: Cross multiply
    499,298.15x = 689,035.62 × 284,434.85
  4. Step 4: Simplify right side
    499,298.15x = 195,985,743,219.36
  5. Step 5: Solve for x
    x = 195,985,743,219.36/499,298.15
  6. Step 6: Final answer
    x = 392,522.47

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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.