Home / 403,988.76-557,439.30-242,805.24

Finding the Fourth Proportional to 403,988.76, 557,439.30 and 242,805.24

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Solution

The fourth proportional to 403,988.76, 557,439.30 and 242,805.24 is: 335,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,988.76 : 557,439.30 = 242,805.24 : x
  2. Step 2: Convert to fraction form
    403,988.76/557,439.30 = 242,805.24/x
  3. Step 3: Cross multiply
    403,988.76x = 557,439.30 × 242,805.24
  4. Step 4: Simplify right side
    403,988.76x = 135,349,183,021.93
  5. Step 5: Solve for x
    x = 135,349,183,021.93/403,988.76
  6. Step 6: Final answer
    x = 335,032.05

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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.