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Finding the Fourth Proportional to 623,770.25, 860,802.34 and 337,289.65

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Solution

The fourth proportional to 623,770.25, 860,802.34 and 337,289.65 is: 465,459.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,770.25 : 860,802.34 = 337,289.65 : x
  2. Step 2: Convert to fraction form
    623,770.25/860,802.34 = 337,289.65/x
  3. Step 3: Cross multiply
    623,770.25x = 860,802.34 × 337,289.65
  4. Step 4: Simplify right side
    623,770.25x = 290,339,716,139.33
  5. Step 5: Solve for x
    x = 290,339,716,139.33/623,770.25
  6. Step 6: Final answer
    x = 465,459.39

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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.