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Finding the Fourth Proportional to 546,879.80, 820,319.70 and 497,016.20

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Solution

The fourth proportional to 546,879.80, 820,319.70 and 497,016.20 is: 745,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,879.80 : 820,319.70 = 497,016.20 : x
  2. Step 2: Convert to fraction form
    546,879.80/820,319.70 = 497,016.20/x
  3. Step 3: Cross multiply
    546,879.80x = 820,319.70 × 497,016.20
  4. Step 4: Simplify right side
    546,879.80x = 407,712,180,079.14
  5. Step 5: Solve for x
    x = 407,712,180,079.14/546,879.80
  6. Step 6: Final answer
    x = 745,524.30

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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.