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Finding the Fourth Proportional to 439,442.21, 606,446.58 and 248,444.21

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Solution

The fourth proportional to 439,442.21, 606,446.58 and 248,444.21 is: 342,862.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,442.21 : 606,446.58 = 248,444.21 : x
  2. Step 2: Convert to fraction form
    439,442.21/606,446.58 = 248,444.21/x
  3. Step 3: Cross multiply
    439,442.21x = 606,446.58 × 248,444.21
  4. Step 4: Simplify right side
    439,442.21x = 150,668,138,443.07
  5. Step 5: Solve for x
    x = 150,668,138,443.07/439,442.21
  6. Step 6: Final answer
    x = 342,862.24

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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.