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Finding the Fourth Proportional to 546,718.40, 820,077.60 and 192,132.80

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Solution

The fourth proportional to 546,718.40, 820,077.60 and 192,132.80 is: 288,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,718.40 : 820,077.60 = 192,132.80 : x
  2. Step 2: Convert to fraction form
    546,718.40/820,077.60 = 192,132.80/x
  3. Step 3: Cross multiply
    546,718.40x = 820,077.60 × 192,132.80
  4. Step 4: Simplify right side
    546,718.40x = 157,563,805,505.28
  5. Step 5: Solve for x
    x = 157,563,805,505.28/546,718.40
  6. Step 6: Final answer
    x = 288,199.20

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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.