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Finding the Fourth Proportional to 439,803.72, 606,930.31 and 238,599.72

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Solution

The fourth proportional to 439,803.72, 606,930.31 and 238,599.72 is: 329,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,803.72 : 606,930.31 = 238,599.72 : x
  2. Step 2: Convert to fraction form
    439,803.72/606,930.31 = 238,599.72/x
  3. Step 3: Cross multiply
    439,803.72x = 606,930.31 × 238,599.72
  4. Step 4: Simplify right side
    439,803.72x = 144,813,402,025.51
  5. Step 5: Solve for x
    x = 144,813,402,025.51/439,803.72
  6. Step 6: Final answer
    x = 329,268.25

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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.