Home / 899,999.58-1,242,311.94-518,178.54

Finding the Fourth Proportional to 899,999.58, 1,242,311.94 and 518,178.54

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Solution

The fourth proportional to 899,999.58, 1,242,311.94 and 518,178.54 is: 715,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,999.58 : 1,242,311.94 = 518,178.54 : x
  2. Step 2: Convert to fraction form
    899,999.58/1,242,311.94 = 518,178.54/x
  3. Step 3: Cross multiply
    899,999.58x = 1,242,311.94 × 518,178.54
  4. Step 4: Simplify right side
    899,999.58x = 643,739,387,293.77
  5. Step 5: Solve for x
    x = 643,739,387,293.77/899,999.58
  6. Step 6: Final answer
    x = 715,266.32

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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.