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Finding the Fourth Proportional to 439,771.66, 606,886.06 and 238,567.66

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Solution

The fourth proportional to 439,771.66, 606,886.06 and 238,567.66 is: 329,224.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,771.66 : 606,886.06 = 238,567.66 : x
  2. Step 2: Convert to fraction form
    439,771.66/606,886.06 = 238,567.66/x
  3. Step 3: Cross multiply
    439,771.66x = 606,886.06 × 238,567.66
  4. Step 4: Simplify right side
    439,771.66x = 144,783,387,220.82
  5. Step 5: Solve for x
    x = 144,783,387,220.82/439,771.66
  6. Step 6: Final answer
    x = 329,224.01

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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.