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Finding the Fourth Proportional to 530,997.45, 732,773.59 and 289,279.45

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Solution

The fourth proportional to 530,997.45, 732,773.59 and 289,279.45 is: 399,204.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,997.45 : 732,773.59 = 289,279.45 : x
  2. Step 2: Convert to fraction form
    530,997.45/732,773.59 = 289,279.45/x
  3. Step 3: Cross multiply
    530,997.45x = 732,773.59 × 289,279.45
  4. Step 4: Simplify right side
    530,997.45x = 211,976,341,089.73
  5. Step 5: Solve for x
    x = 211,976,341,089.73/530,997.45
  6. Step 6: Final answer
    x = 399,204.07

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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.