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Finding the Fourth Proportional to 546,671.40, 820,007.10 and 192,085.80

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Solution

The fourth proportional to 546,671.40, 820,007.10 and 192,085.80 is: 288,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,671.40 : 820,007.10 = 192,085.80 : x
  2. Step 2: Convert to fraction form
    546,671.40/820,007.10 = 192,085.80/x
  3. Step 3: Cross multiply
    546,671.40x = 820,007.10 × 192,085.80
  4. Step 4: Simplify right side
    546,671.40x = 157,511,719,809.18
  5. Step 5: Solve for x
    x = 157,511,719,809.18/546,671.40
  6. Step 6: Final answer
    x = 288,128.70

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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.