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Finding the Fourth Proportional to 624,189.40, 936,284.10 and 579,952.60

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Solution

The fourth proportional to 624,189.40, 936,284.10 and 579,952.60 is: 869,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,189.40 : 936,284.10 = 579,952.60 : x
  2. Step 2: Convert to fraction form
    624,189.40/936,284.10 = 579,952.60/x
  3. Step 3: Cross multiply
    624,189.40x = 936,284.10 × 579,952.60
  4. Step 4: Simplify right side
    624,189.40x = 543,000,398,133.66
  5. Step 5: Solve for x
    x = 543,000,398,133.66/624,189.40
  6. Step 6: Final answer
    x = 869,928.90

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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.