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Finding the Fourth Proportional to 439,143.64, 606,018.62 and 237,939.64

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Solution

The fourth proportional to 439,143.64, 606,018.62 and 237,939.64 is: 328,356.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,143.64 : 606,018.62 = 237,939.64 : x
  2. Step 2: Convert to fraction form
    439,143.64/606,018.62 = 237,939.64/x
  3. Step 3: Cross multiply
    439,143.64x = 606,018.62 × 237,939.64
  4. Step 4: Simplify right side
    439,143.64x = 144,195,852,276.10
  5. Step 5: Solve for x
    x = 144,195,852,276.10/439,143.64
  6. Step 6: Final answer
    x = 328,356.92

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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.