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Finding the Fourth Proportional to 530,958.42, 732,714.15 and 289,243.89

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Solution

The fourth proportional to 530,958.42, 732,714.15 and 289,243.89 is: 399,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,958.42 : 732,714.15 = 289,243.89 : x
  2. Step 2: Convert to fraction form
    530,958.42/732,714.15 = 289,243.89/x
  3. Step 3: Cross multiply
    530,958.42x = 732,714.15 × 289,243.89
  4. Step 4: Simplify right side
    530,958.42x = 211,933,091,004.04
  5. Step 5: Solve for x
    x = 211,933,091,004.04/530,958.42
  6. Step 6: Final answer
    x = 399,151.95

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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.