Home / 531,939.72-734,077.98-290,222.76

Finding the Fourth Proportional to 531,939.72, 734,077.98 and 290,222.76

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Solution

The fourth proportional to 531,939.72, 734,077.98 and 290,222.76 is: 400,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,939.72 : 734,077.98 = 290,222.76 : x
  2. Step 2: Convert to fraction form
    531,939.72/734,077.98 = 290,222.76/x
  3. Step 3: Cross multiply
    531,939.72x = 734,077.98 × 290,222.76
  4. Step 4: Simplify right side
    531,939.72x = 213,046,137,410.83
  5. Step 5: Solve for x
    x = 213,046,137,410.83/531,939.72
  6. Step 6: Final answer
    x = 400,508.05

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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.