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Finding the Fourth Proportional to 320,155.55, 441,820.99 and 174,970.32

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Solution

The fourth proportional to 320,155.55, 441,820.99 and 174,970.32 is: 241,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,155.55 : 441,820.99 = 174,970.32 : x
  2. Step 2: Convert to fraction form
    320,155.55/441,820.99 = 174,970.32/x
  3. Step 3: Cross multiply
    320,155.55x = 441,820.99 × 174,970.32
  4. Step 4: Simplify right side
    320,155.55x = 77,305,560,003.02
  5. Step 5: Solve for x
    x = 77,305,560,003.02/320,155.55
  6. Step 6: Final answer
    x = 241,462.50

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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.