Home / 860,505.90-1,187,382.96-478,459.14

Finding the Fourth Proportional to 860,505.90, 1,187,382.96 and 478,459.14

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Solution

The fourth proportional to 860,505.90, 1,187,382.96 and 478,459.14 is: 660,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,505.90 : 1,187,382.96 = 478,459.14 : x
  2. Step 2: Convert to fraction form
    860,505.90/1,187,382.96 = 478,459.14/x
  3. Step 3: Cross multiply
    860,505.90x = 1,187,382.96 × 478,459.14
  4. Step 4: Simplify right side
    860,505.90x = 568,114,229,892.25
  5. Step 5: Solve for x
    x = 568,114,229,892.25/860,505.90
  6. Step 6: Final answer
    x = 660,209.57

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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.