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Finding the Fourth Proportional to 893,672.13, 1,233,265.16 and 485,773.95

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Solution

The fourth proportional to 893,672.13, 1,233,265.16 and 485,773.95 is: 670,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,672.13 : 1,233,265.16 = 485,773.95 : x
  2. Step 2: Convert to fraction form
    893,672.13/1,233,265.16 = 485,773.95/x
  3. Step 3: Cross multiply
    893,672.13x = 1,233,265.16 × 485,773.95
  4. Step 4: Simplify right side
    893,672.13x = 599,088,085,741.71
  5. Step 5: Solve for x
    x = 599,088,085,741.71/893,672.13
  6. Step 6: Final answer
    x = 670,366.75

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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.