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Finding the Fourth Proportional to 498,697.66, 688,032.02 and 283,783.91

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Solution

The fourth proportional to 498,697.66, 688,032.02 and 283,783.91 is: 391,524.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,697.66 : 688,032.02 = 283,783.91 : x
  2. Step 2: Convert to fraction form
    498,697.66/688,032.02 = 283,783.91/x
  3. Step 3: Cross multiply
    498,697.66x = 688,032.02 × 283,783.91
  4. Step 4: Simplify right side
    498,697.66x = 195,252,414,110.10
  5. Step 5: Solve for x
    x = 195,252,414,110.10/498,697.66
  6. Step 6: Final answer
    x = 391,524.62

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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.