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Finding the Fourth Proportional to 608,548.20, 912,822.30 and 356,605.80

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Solution

The fourth proportional to 608,548.20, 912,822.30 and 356,605.80 is: 534,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,548.20 : 912,822.30 = 356,605.80 : x
  2. Step 2: Convert to fraction form
    608,548.20/912,822.30 = 356,605.80/x
  3. Step 3: Cross multiply
    608,548.20x = 912,822.30 × 356,605.80
  4. Step 4: Simplify right side
    608,548.20x = 325,517,726,549.34
  5. Step 5: Solve for x
    x = 325,517,726,549.34/608,548.20
  6. Step 6: Final answer
    x = 534,908.70

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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.