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Finding the Fourth Proportional to 661,692.40, 992,538.60 and 603,631.60

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Solution

The fourth proportional to 661,692.40, 992,538.60 and 603,631.60 is: 905,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,692.40 : 992,538.60 = 603,631.60 : x
  2. Step 2: Convert to fraction form
    661,692.40/992,538.60 = 603,631.60/x
  3. Step 3: Cross multiply
    661,692.40x = 992,538.60 × 603,631.60
  4. Step 4: Simplify right side
    661,692.40x = 599,127,663,179.76
  5. Step 5: Solve for x
    x = 599,127,663,179.76/661,692.40
  6. Step 6: Final answer
    x = 905,447.40

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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.