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Finding the Fourth Proportional to 670,699.80, 1,006,049.70 and 404,323.20

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Solution

The fourth proportional to 670,699.80, 1,006,049.70 and 404,323.20 is: 606,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,699.80 : 1,006,049.70 = 404,323.20 : x
  2. Step 2: Convert to fraction form
    670,699.80/1,006,049.70 = 404,323.20/x
  3. Step 3: Cross multiply
    670,699.80x = 1,006,049.70 × 404,323.20
  4. Step 4: Simplify right side
    670,699.80x = 406,769,234,063.04
  5. Step 5: Solve for x
    x = 406,769,234,063.04/670,699.80
  6. Step 6: Final answer
    x = 606,484.80

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Similar ratio
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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.