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Finding the Fourth Proportional to 530,997.50, 732,773.65 and 289,279.49

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Solution

The fourth proportional to 530,997.50, 732,773.65 and 289,279.49 is: 399,204.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,997.50 : 732,773.65 = 289,279.49 : x
  2. Step 2: Convert to fraction form
    530,997.50/732,773.65 = 289,279.49/x
  3. Step 3: Cross multiply
    530,997.50x = 732,773.65 × 289,279.49
  4. Step 4: Simplify right side
    530,997.50x = 211,976,386,660.67
  5. Step 5: Solve for x
    x = 211,976,386,660.67/530,997.50
  6. Step 6: Final answer
    x = 399,204.12

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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.