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Finding the Fourth Proportional to 520,833.36, 718,826.64 and 329,864.52

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Solution

The fourth proportional to 520,833.36, 718,826.64 and 329,864.52 is: 455,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,833.36 : 718,826.64 = 329,864.52 : x
  2. Step 2: Convert to fraction form
    520,833.36/718,826.64 = 329,864.52/x
  3. Step 3: Cross multiply
    520,833.36x = 718,826.64 × 329,864.52
  4. Step 4: Simplify right side
    520,833.36x = 237,115,404,566.81
  5. Step 5: Solve for x
    x = 237,115,404,566.81/520,833.36
  6. Step 6: Final answer
    x = 455,261.55

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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.