Home / 860,359.02-1,290,454.44-261,325.38

Finding the Fourth Proportional to 860,359.02, 1,290,454.44 and 261,325.38

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Solution

The fourth proportional to 860,359.02, 1,290,454.44 and 261,325.38 is: 391,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,359.02 : 1,290,454.44 = 261,325.38 : x
  2. Step 2: Convert to fraction form
    860,359.02/1,290,454.44 = 261,325.38/x
  3. Step 3: Cross multiply
    860,359.02x = 1,290,454.44 × 261,325.38
  4. Step 4: Simplify right side
    860,359.02x = 337,228,496,905.69
  5. Step 5: Solve for x
    x = 337,228,496,905.69/860,359.02
  6. Step 6: Final answer
    x = 391,962.53

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Double scale
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1.5x scale

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.