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Finding the Fourth Proportional to 536,429.30, 805,162.35 and 326,477.30

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Solution

The fourth proportional to 536,429.30, 805,162.35 and 326,477.30 is: 490,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,429.30 : 805,162.35 = 326,477.30 : x
  2. Step 2: Convert to fraction form
    536,429.30/805,162.35 = 326,477.30/x
  3. Step 3: Cross multiply
    536,429.30x = 805,162.35 × 326,477.30
  4. Step 4: Simplify right side
    536,429.30x = 262,867,230,089.66
  5. Step 5: Solve for x
    x = 262,867,230,089.66/536,429.30
  6. Step 6: Final answer
    x = 490,031.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.