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Finding the Fourth Proportional to 300,762.45, 415,046.75 and 178,337.22

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Solution

The fourth proportional to 300,762.45, 415,046.75 and 178,337.22 is: 246,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,762.45 : 415,046.75 = 178,337.22 : x
  2. Step 2: Convert to fraction form
    300,762.45/415,046.75 = 178,337.22/x
  3. Step 3: Cross multiply
    300,762.45x = 415,046.75 × 178,337.22
  4. Step 4: Simplify right side
    300,762.45x = 74,018,283,565.04
  5. Step 5: Solve for x
    x = 74,018,283,565.04/300,762.45
  6. Step 6: Final answer
    x = 246,102.14

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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.