Home / 860,577.32-1,187,505.78-478,542.44

Finding the Fourth Proportional to 860,577.32, 1,187,505.78 and 478,542.44

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Solution

The fourth proportional to 860,577.32, 1,187,505.78 and 478,542.44 is: 660,338.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,577.32 : 1,187,505.78 = 478,542.44 : x
  2. Step 2: Convert to fraction form
    860,577.32/1,187,505.78 = 478,542.44/x
  3. Step 3: Cross multiply
    860,577.32x = 1,187,505.78 × 478,542.44
  4. Step 4: Simplify right side
    860,577.32x = 568,271,913,475.30
  5. Step 5: Solve for x
    x = 568,271,913,475.30/860,577.32
  6. Step 6: Final answer
    x = 660,338.01

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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.