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Finding the Fourth Proportional to 376,435.62, 561,945.67 and 322,547.32

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Solution

The fourth proportional to 376,435.62, 561,945.67 and 322,547.32 is: 481,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,435.62 : 561,945.67 = 322,547.32 : x
  2. Step 2: Convert to fraction form
    376,435.62/561,945.67 = 322,547.32/x
  3. Step 3: Cross multiply
    376,435.62x = 561,945.67 × 322,547.32
  4. Step 4: Simplify right side
    376,435.62x = 181,254,069,844.10
  5. Step 5: Solve for x
    x = 181,254,069,844.10/376,435.62
  6. Step 6: Final answer
    x = 481,500.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.