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Finding the Fourth Proportional to 504,966.21, 696,223.08 and 323,379.60

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Solution

The fourth proportional to 504,966.21, 696,223.08 and 323,379.60 is: 445,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,966.21 : 696,223.08 = 323,379.60 : x
  2. Step 2: Convert to fraction form
    504,966.21/696,223.08 = 323,379.60/x
  3. Step 3: Cross multiply
    504,966.21x = 696,223.08 × 323,379.60
  4. Step 4: Simplify right side
    504,966.21x = 225,144,342,053.28
  5. Step 5: Solve for x
    x = 225,144,342,053.28/504,966.21
  6. Step 6: Final answer
    x = 445,860.21

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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.