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Finding the Fourth Proportional to 528,051.10, 789,772.65 and 472,294.30

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Solution

The fourth proportional to 528,051.10, 789,772.65 and 472,294.30 is: 706,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,051.10 : 789,772.65 = 472,294.30 : x
  2. Step 2: Convert to fraction form
    528,051.10/789,772.65 = 472,294.30/x
  3. Step 3: Cross multiply
    528,051.10x = 789,772.65 × 472,294.30
  4. Step 4: Simplify right side
    528,051.10x = 373,005,120,890.90
  5. Step 5: Solve for x
    x = 373,005,120,890.90/528,051.10
  6. Step 6: Final answer
    x = 706,380.73

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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.