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Finding the Fourth Proportional to 623,772.40, 860,805.32 and 337,291.80

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Solution

The fourth proportional to 623,772.40, 860,805.32 and 337,291.80 is: 465,462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,772.40 : 860,805.32 = 337,291.80 : x
  2. Step 2: Convert to fraction form
    623,772.40/860,805.32 = 337,291.80/x
  3. Step 3: Cross multiply
    623,772.40x = 860,805.32 × 337,291.80
  4. Step 4: Simplify right side
    623,772.40x = 290,342,575,832.38
  5. Step 5: Solve for x
    x = 290,342,575,832.38/623,772.40
  6. Step 6: Final answer
    x = 465,462.36

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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.