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Finding the Fourth Proportional to 415,911.62, 623,867.44 and 100,368.56

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Solution

The fourth proportional to 415,911.62, 623,867.44 and 100,368.56 is: 150,552.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,911.62 : 623,867.44 = 100,368.56 : x
  2. Step 2: Convert to fraction form
    415,911.62/623,867.44 = 100,368.56/x
  3. Step 3: Cross multiply
    415,911.62x = 623,867.44 × 100,368.56
  4. Step 4: Simplify right side
    415,911.62x = 62,616,676,583.69
  5. Step 5: Solve for x
    x = 62,616,676,583.69/415,911.62
  6. Step 6: Final answer
    x = 150,552.84

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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.