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Finding the Fourth Proportional to 530,860.92, 732,562.83 and 289,142.34

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Solution

The fourth proportional to 530,860.92, 732,562.83 and 289,142.34 is: 399,002.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,860.92 : 732,562.83 = 289,142.34 : x
  2. Step 2: Convert to fraction form
    530,860.92/732,562.83 = 289,142.34/x
  3. Step 3: Cross multiply
    530,860.92x = 732,562.83 × 289,142.34
  4. Step 4: Simplify right side
    530,860.92x = 211,814,930,863.22
  5. Step 5: Solve for x
    x = 211,814,930,863.22/530,860.92
  6. Step 6: Final answer
    x = 399,002.68

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1.5x scale

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.