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Finding the Fourth Proportional to 376,563, 519,703.02 and 217,587

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Solution

The fourth proportional to 376,563, 519,703.02 and 217,587 is: 300,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,563 : 519,703.02 = 217,587 : x
  2. Step 2: Convert to fraction form
    376,563/519,703.02 = 217,587/x
  3. Step 3: Cross multiply
    376,563x = 519,703.02 × 217,587
  4. Step 4: Simplify right side
    376,563x = 113,080,621,012.74
  5. Step 5: Solve for x
    x = 113,080,621,012.74/376,563
  6. Step 6: Final answer
    x = 300,296.69

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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.