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Finding the Fourth Proportional to 546,921.80, 820,382.70 and 335,875.40

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Solution

The fourth proportional to 546,921.80, 820,382.70 and 335,875.40 is: 503,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,921.80 : 820,382.70 = 335,875.40 : x
  2. Step 2: Convert to fraction form
    546,921.80/820,382.70 = 335,875.40/x
  3. Step 3: Cross multiply
    546,921.80x = 820,382.70 × 335,875.40
  4. Step 4: Simplify right side
    546,921.80x = 275,546,367,515.58
  5. Step 5: Solve for x
    x = 275,546,367,515.58/546,921.80
  6. Step 6: Final answer
    x = 503,813.10

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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.