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Finding the Fourth Proportional to 575,355.42, 863,328.90 and 441,280.74

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Solution

The fourth proportional to 575,355.42, 863,328.90 and 441,280.74 is: 662,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,355.42 : 863,328.90 = 441,280.74 : x
  2. Step 2: Convert to fraction form
    575,355.42/863,328.90 = 441,280.74/x
  3. Step 3: Cross multiply
    575,355.42x = 863,328.90 × 441,280.74
  4. Step 4: Simplify right side
    575,355.42x = 380,970,415,855.39
  5. Step 5: Solve for x
    x = 380,970,415,855.39/575,355.42
  6. Step 6: Final answer
    x = 662,147.96

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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.