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Finding the Fourth Proportional to 439,335.64, 606,412.07 and 255,617.43

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Solution

The fourth proportional to 439,335.64, 606,412.07 and 255,617.43 is: 352,827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,335.64 : 606,412.07 = 255,617.43 : x
  2. Step 2: Convert to fraction form
    439,335.64/606,412.07 = 255,617.43/x
  3. Step 3: Cross multiply
    439,335.64x = 606,412.07 × 255,617.43
  4. Step 4: Simplify right side
    439,335.64x = 155,009,494,854.38
  5. Step 5: Solve for x
    x = 155,009,494,854.38/439,335.64
  6. Step 6: Final answer
    x = 352,827.05

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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.