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Finding the Fourth Proportional to 623,907.03, 860,991.70 and 337,427.12

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Solution

The fourth proportional to 623,907.03, 860,991.70 and 337,427.12 is: 465,649.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,907.03 : 860,991.70 = 337,427.12 : x
  2. Step 2: Convert to fraction form
    623,907.03/860,991.70 = 337,427.12/x
  3. Step 3: Cross multiply
    623,907.03x = 860,991.70 × 337,427.12
  4. Step 4: Simplify right side
    623,907.03x = 290,521,947,722.43
  5. Step 5: Solve for x
    x = 290,521,947,722.43/623,907.03
  6. Step 6: Final answer
    x = 465,649.42

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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.