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Finding the Fourth Proportional to 635,338.16, 876,776.64 and 348,884

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Solution

The fourth proportional to 635,338.16, 876,776.64 and 348,884 is: 481,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,338.16 : 876,776.64 = 348,884 : x
  2. Step 2: Convert to fraction form
    635,338.16/876,776.64 = 348,884/x
  3. Step 3: Cross multiply
    635,338.16x = 876,776.64 × 348,884
  4. Step 4: Simplify right side
    635,338.16x = 305,893,341,269.76
  5. Step 5: Solve for x
    x = 305,893,341,269.76/635,338.16
  6. Step 6: Final answer
    x = 481,465.40

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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.