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Finding the Fourth Proportional to 922,770.12, 1,383,309.54 and 323,404.56

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Solution

The fourth proportional to 922,770.12, 1,383,309.54 and 323,404.56 is: 484,810.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,770.12 : 1,383,309.54 = 323,404.56 : x
  2. Step 2: Convert to fraction form
    922,770.12/1,383,309.54 = 323,404.56/x
  3. Step 3: Cross multiply
    922,770.12x = 1,383,309.54 × 323,404.56
  4. Step 4: Simplify right side
    922,770.12x = 447,368,613,127.50
  5. Step 5: Solve for x
    x = 447,368,613,127.50/922,770.12
  6. Step 6: Final answer
    x = 484,810.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.