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Finding the Fourth Proportional to 546,672.80, 820,009.20 and 496,809.20

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Solution

The fourth proportional to 546,672.80, 820,009.20 and 496,809.20 is: 745,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,672.80 : 820,009.20 = 496,809.20 : x
  2. Step 2: Convert to fraction form
    546,672.80/820,009.20 = 496,809.20/x
  3. Step 3: Cross multiply
    546,672.80x = 820,009.20 × 496,809.20
  4. Step 4: Simplify right side
    546,672.80x = 407,388,114,644.64
  5. Step 5: Solve for x
    x = 407,388,114,644.64/546,672.80
  6. Step 6: Final answer
    x = 745,213.80

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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.