Home / 403,024.32-556,173.54-221,732.40

Finding the Fourth Proportional to 403,024.32, 556,173.54 and 221,732.40

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Solution

The fourth proportional to 403,024.32, 556,173.54 and 221,732.40 is: 305,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,024.32 : 556,173.54 = 221,732.40 : x
  2. Step 2: Convert to fraction form
    403,024.32/556,173.54 = 221,732.40/x
  3. Step 3: Cross multiply
    403,024.32x = 556,173.54 × 221,732.40
  4. Step 4: Simplify right side
    403,024.32x = 123,321,693,840.70
  5. Step 5: Solve for x
    x = 123,321,693,840.70/403,024.32
  6. Step 6: Final answer
    x = 305,990.70

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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.