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Finding the Fourth Proportional to 439,767.56, 606,880.40 and 238,563.56

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Solution

The fourth proportional to 439,767.56, 606,880.40 and 238,563.56 is: 329,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,767.56 : 606,880.40 = 238,563.56 : x
  2. Step 2: Convert to fraction form
    439,767.56/606,880.40 = 238,563.56/x
  3. Step 3: Cross multiply
    439,767.56x = 606,880.40 × 238,563.56
  4. Step 4: Simplify right side
    439,767.56x = 144,779,548,718.22
  5. Step 5: Solve for x
    x = 144,779,548,718.22/439,767.56
  6. Step 6: Final answer
    x = 329,218.35

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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.