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Finding the Fourth Proportional to 322,054.40, 482,908.80 and 134,854.40

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Solution

The fourth proportional to 322,054.40, 482,908.80 and 134,854.40 is: 202,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,054.40 : 482,908.80 = 134,854.40 : x
  2. Step 2: Convert to fraction form
    322,054.40/482,908.80 = 134,854.40/x
  3. Step 3: Cross multiply
    322,054.40x = 482,908.80 × 134,854.40
  4. Step 4: Simplify right side
    322,054.40x = 65,122,376,478.72
  5. Step 5: Solve for x
    x = 65,122,376,478.72/322,054.40
  6. Step 6: Final answer
    x = 202,209.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.