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Finding the Fourth Proportional to 672,226.48, 927,630.84 and 385,770.16

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Solution

The fourth proportional to 672,226.48, 927,630.84 and 385,770.16 is: 532,338.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,226.48 : 927,630.84 = 385,770.16 : x
  2. Step 2: Convert to fraction form
    672,226.48/927,630.84 = 385,770.16/x
  3. Step 3: Cross multiply
    672,226.48x = 927,630.84 × 385,770.16
  4. Step 4: Simplify right side
    672,226.48x = 357,852,297,567.73
  5. Step 5: Solve for x
    x = 357,852,297,567.73/672,226.48
  6. Step 6: Final answer
    x = 532,338.89

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Double scale
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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.