Home / 403,237.56-556,463.40-221,945.58

Finding the Fourth Proportional to 403,237.56, 556,463.40 and 221,945.58

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Solution

The fourth proportional to 403,237.56, 556,463.40 and 221,945.58 is: 306,282.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,237.56 : 556,463.40 = 221,945.58 : x
  2. Step 2: Convert to fraction form
    403,237.56/556,463.40 = 221,945.58/x
  3. Step 3: Cross multiply
    403,237.56x = 556,463.40 × 221,945.58
  4. Step 4: Simplify right side
    403,237.56x = 123,504,592,061.77
  5. Step 5: Solve for x
    x = 123,504,592,061.77/403,237.56
  6. Step 6: Final answer
    x = 306,282.46

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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.