Home / 663,935.44-916,308.36-377,498.44

Finding the Fourth Proportional to 663,935.44, 916,308.36 and 377,498.44

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Solution

The fourth proportional to 663,935.44, 916,308.36 and 377,498.44 is: 520,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,935.44 : 916,308.36 = 377,498.44 : x
  2. Step 2: Convert to fraction form
    663,935.44/916,308.36 = 377,498.44/x
  3. Step 3: Cross multiply
    663,935.44x = 916,308.36 × 377,498.44
  4. Step 4: Simplify right side
    663,935.44x = 345,904,976,458.96
  5. Step 5: Solve for x
    x = 345,904,976,458.96/663,935.44
  6. Step 6: Final answer
    x = 520,991.89

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Double scale
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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.