Home / 405,939.02-560,187-222,176.70

Finding the Fourth Proportional to 405,939.02, 560,187 and 222,176.70

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Solution

The fourth proportional to 405,939.02, 560,187 and 222,176.70 is: 306,599.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,939.02 : 560,187 = 222,176.70 : x
  2. Step 2: Convert to fraction form
    405,939.02/560,187 = 222,176.70/x
  3. Step 3: Cross multiply
    405,939.02x = 560,187 × 222,176.70
  4. Step 4: Simplify right side
    405,939.02x = 124,460,499,042.90
  5. Step 5: Solve for x
    x = 124,460,499,042.90/405,939.02
  6. Step 6: Final answer
    x = 306,599.00

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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.