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Finding the Fourth Proportional to 578,002.40, 867,003.60 and 529,013.60

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Solution

The fourth proportional to 578,002.40, 867,003.60 and 529,013.60 is: 793,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,002.40 : 867,003.60 = 529,013.60 : x
  2. Step 2: Convert to fraction form
    578,002.40/867,003.60 = 529,013.60/x
  3. Step 3: Cross multiply
    578,002.40x = 867,003.60 × 529,013.60
  4. Step 4: Simplify right side
    578,002.40x = 458,656,695,648.96
  5. Step 5: Solve for x
    x = 458,656,695,648.96/578,002.40
  6. Step 6: Final answer
    x = 793,520.40

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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.