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Finding the Fourth Proportional to 385,897.82, 578,537.60 and 183,392.28

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Solution

The fourth proportional to 385,897.82, 578,537.60 and 183,392.28 is: 274,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,897.82 : 578,537.60 = 183,392.28 : x
  2. Step 2: Convert to fraction form
    385,897.82/578,537.60 = 183,392.28/x
  3. Step 3: Cross multiply
    385,897.82x = 578,537.60 × 183,392.28
  4. Step 4: Simplify right side
    385,897.82x = 106,099,328,612.77
  5. Step 5: Solve for x
    x = 106,099,328,612.77/385,897.82
  6. Step 6: Final answer
    x = 274,941.51

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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.