Home / 401,528.55-553,899.51-238,089.96

Finding the Fourth Proportional to 401,528.55, 553,899.51 and 238,089.96

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Solution

The fourth proportional to 401,528.55, 553,899.51 and 238,089.96 is: 328,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,528.55 : 553,899.51 = 238,089.96 : x
  2. Step 2: Convert to fraction form
    401,528.55/553,899.51 = 238,089.96/x
  3. Step 3: Cross multiply
    401,528.55x = 553,899.51 × 238,089.96
  4. Step 4: Simplify right side
    401,528.55x = 131,877,912,179.92
  5. Step 5: Solve for x
    x = 131,877,912,179.92/401,528.55
  6. Step 6: Final answer
    x = 328,439.69

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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.