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Finding the Fourth Proportional to 623,798.21, 860,841.54 and 337,318.31

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Solution

The fourth proportional to 623,798.21, 860,841.54 and 337,318.31 is: 465,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,798.21 : 860,841.54 = 337,318.31 : x
  2. Step 2: Convert to fraction form
    623,798.21/860,841.54 = 337,318.31/x
  3. Step 3: Cross multiply
    623,798.21x = 860,841.54 × 337,318.31
  4. Step 4: Simplify right side
    623,798.21x = 290,377,609,146.39
  5. Step 5: Solve for x
    x = 290,377,609,146.39/623,798.21
  6. Step 6: Final answer
    x = 465,499.27

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1.5x scale

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.