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Finding the Fourth Proportional to 627,661.40, 941,492.10 and 576,051.80

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Solution

The fourth proportional to 627,661.40, 941,492.10 and 576,051.80 is: 864,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,661.40 : 941,492.10 = 576,051.80 : x
  2. Step 2: Convert to fraction form
    627,661.40/941,492.10 = 576,051.80/x
  3. Step 3: Cross multiply
    627,661.40x = 941,492.10 × 576,051.80
  4. Step 4: Simplify right side
    627,661.40x = 542,348,218,890.78
  5. Step 5: Solve for x
    x = 542,348,218,890.78/627,661.40
  6. Step 6: Final answer
    x = 864,077.70

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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.