Home / 403,415.02-556,726.53-222,139.45

Finding the Fourth Proportional to 403,415.02, 556,726.53 and 222,139.45

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Solution

The fourth proportional to 403,415.02, 556,726.53 and 222,139.45 is: 306,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,415.02 : 556,726.53 = 222,139.45 : x
  2. Step 2: Convert to fraction form
    403,415.02/556,726.53 = 222,139.45/x
  3. Step 3: Cross multiply
    403,415.02x = 556,726.53 × 222,139.45
  4. Step 4: Simplify right side
    403,415.02x = 123,670,925,174.61
  5. Step 5: Solve for x
    x = 123,670,925,174.61/403,415.02
  6. Step 6: Final answer
    x = 306,560.04

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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.