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Finding the Fourth Proportional to 439,570, 606,606.60 and 238,366.16

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Solution

The fourth proportional to 439,570, 606,606.60 and 238,366.16 is: 328,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,570 : 606,606.60 = 238,366.16 : x
  2. Step 2: Convert to fraction form
    439,570/606,606.60 = 238,366.16/x
  3. Step 3: Cross multiply
    439,570x = 606,606.60 × 238,366.16
  4. Step 4: Simplify right side
    439,570x = 144,594,485,872.66
  5. Step 5: Solve for x
    x = 144,594,485,872.66/439,570
  6. Step 6: Final answer
    x = 328,945.30

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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.