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Finding the Fourth Proportional to 543,220.90, 814,827.30 and 164,140.90

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Solution

The fourth proportional to 543,220.90, 814,827.30 and 164,140.90 is: 246,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,220.90 : 814,827.30 = 164,140.90 : x
  2. Step 2: Convert to fraction form
    543,220.90/814,827.30 = 164,140.90/x
  3. Step 3: Cross multiply
    543,220.90x = 814,827.30 × 164,140.90
  4. Step 4: Simplify right side
    543,220.90x = 133,746,486,366.57
  5. Step 5: Solve for x
    x = 133,746,486,366.57/543,220.90
  6. Step 6: Final answer
    x = 246,210.13

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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.