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Finding the Fourth Proportional to 439,765.66, 606,877.77 and 238,561.66

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Solution

The fourth proportional to 439,765.66, 606,877.77 and 238,561.66 is: 329,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,765.66 : 606,877.77 = 238,561.66 : x
  2. Step 2: Convert to fraction form
    439,765.66/606,877.77 = 238,561.66/x
  3. Step 3: Cross multiply
    439,765.66x = 606,877.77 × 238,561.66
  4. Step 4: Simplify right side
    439,765.66x = 144,777,767,605.71
  5. Step 5: Solve for x
    x = 144,777,767,605.71/439,765.66
  6. Step 6: Final answer
    x = 329,215.72

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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.