Home / 401,176.75-553,684.89-256,045.18

Finding the Fourth Proportional to 401,176.75, 553,684.89 and 256,045.18

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Solution

The fourth proportional to 401,176.75, 553,684.89 and 256,045.18 is: 353,381.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,176.75 : 553,684.89 = 256,045.18 : x
  2. Step 2: Convert to fraction form
    401,176.75/553,684.89 = 256,045.18/x
  3. Step 3: Cross multiply
    401,176.75x = 553,684.89 × 256,045.18
  4. Step 4: Simplify right side
    401,176.75x = 141,768,346,899.29
  5. Step 5: Solve for x
    x = 141,768,346,899.29/401,176.75
  6. Step 6: Final answer
    x = 353,381.27

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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.