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Finding the Fourth Proportional to 530,874.72, 732,596.94 and 289,154.52

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Solution

The fourth proportional to 530,874.72, 732,596.94 and 289,154.52 is: 399,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,874.72 : 732,596.94 = 289,154.52 : x
  2. Step 2: Convert to fraction form
    530,874.72/732,596.94 = 289,154.52/x
  3. Step 3: Cross multiply
    530,874.72x = 732,596.94 × 289,154.52
  4. Step 4: Simplify right side
    530,874.72x = 211,833,716,539.17
  5. Step 5: Solve for x
    x = 211,833,716,539.17/530,874.72
  6. Step 6: Final answer
    x = 399,027.70

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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.