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Finding the Fourth Proportional to 576,943.30, 865,414.95 and 328,111.30

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Solution

The fourth proportional to 576,943.30, 865,414.95 and 328,111.30 is: 492,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,943.30 : 865,414.95 = 328,111.30 : x
  2. Step 2: Convert to fraction form
    576,943.30/865,414.95 = 328,111.30/x
  3. Step 3: Cross multiply
    576,943.30x = 865,414.95 × 328,111.30
  4. Step 4: Simplify right side
    576,943.30x = 283,952,424,283.94
  5. Step 5: Solve for x
    x = 283,952,424,283.94/576,943.30
  6. Step 6: Final answer
    x = 492,166.95

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.