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Finding the Fourth Proportional to 536,862.19, 805,251.41 and 312,079.25

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Solution

The fourth proportional to 536,862.19, 805,251.41 and 312,079.25 is: 468,094.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,862.19 : 805,251.41 = 312,079.25 : x
  2. Step 2: Convert to fraction form
    536,862.19/805,251.41 = 312,079.25/x
  3. Step 3: Cross multiply
    536,862.19x = 805,251.41 × 312,079.25
  4. Step 4: Simplify right side
    536,862.19x = 251,302,259,472.72
  5. Step 5: Solve for x
    x = 251,302,259,472.72/536,862.19
  6. Step 6: Final answer
    x = 468,094.54

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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.