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Finding the Fourth Proportional to 545,883.80, 818,825.70 and 404,166.20

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Solution

The fourth proportional to 545,883.80, 818,825.70 and 404,166.20 is: 606,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,883.80 : 818,825.70 = 404,166.20 : x
  2. Step 2: Convert to fraction form
    545,883.80/818,825.70 = 404,166.20/x
  3. Step 3: Cross multiply
    545,883.80x = 818,825.70 × 404,166.20
  4. Step 4: Simplify right side
    545,883.80x = 330,941,671,631.34
  5. Step 5: Solve for x
    x = 330,941,671,631.34/545,883.80
  6. Step 6: Final answer
    x = 606,249.30

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Double scale
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Similar ratio
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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.