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Finding the Fourth Proportional to 530,559.36, 732,326.40 and 423,872.64

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Solution

The fourth proportional to 530,559.36, 732,326.40 and 423,872.64 is: 585,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,559.36 : 732,326.40 = 423,872.64 : x
  2. Step 2: Convert to fraction form
    530,559.36/732,326.40 = 423,872.64/x
  3. Step 3: Cross multiply
    530,559.36x = 732,326.40 × 423,872.64
  4. Step 4: Simplify right side
    530,559.36x = 310,413,124,509.70
  5. Step 5: Solve for x
    x = 310,413,124,509.70/530,559.36
  6. Step 6: Final answer
    x = 585,067.66

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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.