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Finding the Fourth Proportional to 385,898.88, 578,539.19 and 183,393.34

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Solution

The fourth proportional to 385,898.88, 578,539.19 and 183,393.34 is: 274,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,898.88 : 578,539.19 = 183,393.34 : x
  2. Step 2: Convert to fraction form
    385,898.88/578,539.19 = 183,393.34/x
  3. Step 3: Cross multiply
    385,898.88x = 578,539.19 × 183,393.34
  4. Step 4: Simplify right side
    385,898.88x = 106,100,235,592.10
  5. Step 5: Solve for x
    x = 106,100,235,592.10/385,898.88
  6. Step 6: Final answer
    x = 274,943.10

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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.