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Finding the Fourth Proportional to 562,956.48, 776,874.24 and 308,306.52

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Solution

The fourth proportional to 562,956.48, 776,874.24 and 308,306.52 is: 425,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,956.48 : 776,874.24 = 308,306.52 : x
  2. Step 2: Convert to fraction form
    562,956.48/776,874.24 = 308,306.52/x
  3. Step 3: Cross multiply
    562,956.48x = 776,874.24 × 308,306.52
  4. Step 4: Simplify right side
    562,956.48x = 239,515,393,412.05
  5. Step 5: Solve for x
    x = 239,515,393,412.05/562,956.48
  6. Step 6: Final answer
    x = 425,459.87

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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.