Home / 403,697.28-557,102.40-234,029.76

Finding the Fourth Proportional to 403,697.28, 557,102.40 and 234,029.76

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Solution

The fourth proportional to 403,697.28, 557,102.40 and 234,029.76 is: 322,961.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,697.28 : 557,102.40 = 234,029.76 : x
  2. Step 2: Convert to fraction form
    403,697.28/557,102.40 = 234,029.76/x
  3. Step 3: Cross multiply
    403,697.28x = 557,102.40 × 234,029.76
  4. Step 4: Simplify right side
    403,697.28x = 130,378,540,967.42
  5. Step 5: Solve for x
    x = 130,378,540,967.42/403,697.28
  6. Step 6: Final answer
    x = 322,961.16

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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.