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Finding the Fourth Proportional to 576,827.74, 796,038.33 and 318,721.32

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Solution

The fourth proportional to 576,827.74, 796,038.33 and 318,721.32 is: 439,844.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,827.74 : 796,038.33 = 318,721.32 : x
  2. Step 2: Convert to fraction form
    576,827.74/796,038.33 = 318,721.32/x
  3. Step 3: Cross multiply
    576,827.74x = 796,038.33 × 318,721.32
  4. Step 4: Simplify right side
    576,827.74x = 253,714,383,328.00
  5. Step 5: Solve for x
    x = 253,714,383,328.00/576,827.74
  6. Step 6: Final answer
    x = 439,844.28

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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.