Home / 403,834.72-556,913.92-319,154.08

Finding the Fourth Proportional to 403,834.72, 556,913.92 and 319,154.08

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Solution

The fourth proportional to 403,834.72, 556,913.92 and 319,154.08 is: 440,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,834.72 : 556,913.92 = 319,154.08 : x
  2. Step 2: Convert to fraction form
    403,834.72/556,913.92 = 319,154.08/x
  3. Step 3: Cross multiply
    403,834.72x = 556,913.92 × 319,154.08
  4. Step 4: Simplify right side
    403,834.72x = 177,741,349,776.79
  5. Step 5: Solve for x
    x = 177,741,349,776.79/403,834.72
  6. Step 6: Final answer
    x = 440,133.90

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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.