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Finding the Fourth Proportional to 439,078.64, 605,929.14 and 237,874.64

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Solution

The fourth proportional to 439,078.64, 605,929.14 and 237,874.64 is: 328,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,078.64 : 605,929.14 = 237,874.64 : x
  2. Step 2: Convert to fraction form
    439,078.64/605,929.14 = 237,874.64/x
  3. Step 3: Cross multiply
    439,078.64x = 605,929.14 × 237,874.64
  4. Step 4: Simplify right side
    439,078.64x = 144,135,176,043.01
  5. Step 5: Solve for x
    x = 144,135,176,043.01/439,078.64
  6. Step 6: Final answer
    x = 328,267.34

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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.