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Finding the Fourth Proportional to 529,775.54, 731,079.93 and 288,056.00

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Solution

The fourth proportional to 529,775.54, 731,079.93 and 288,056.00 is: 397,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,775.54 : 731,079.93 = 288,056.00 : x
  2. Step 2: Convert to fraction form
    529,775.54/731,079.93 = 288,056.00/x
  3. Step 3: Cross multiply
    529,775.54x = 731,079.93 × 288,056.00
  4. Step 4: Simplify right side
    529,775.54x = 210,591,957,491.35
  5. Step 5: Solve for x
    x = 210,591,957,491.35/529,775.54
  6. Step 6: Final answer
    x = 397,511.67

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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.