Home / 839,692.40-1,158,766.08-457,710.80

Finding the Fourth Proportional to 839,692.40, 1,158,766.08 and 457,710.80

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Solution

The fourth proportional to 839,692.40, 1,158,766.08 and 457,710.80 is: 631,635.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,692.40 : 1,158,766.08 = 457,710.80 : x
  2. Step 2: Convert to fraction form
    839,692.40/1,158,766.08 = 457,710.80/x
  3. Step 3: Cross multiply
    839,692.40x = 1,158,766.08 × 457,710.80
  4. Step 4: Simplify right side
    839,692.40x = 530,379,749,489.66
  5. Step 5: Solve for x
    x = 530,379,749,489.66/839,692.40
  6. Step 6: Final answer
    x = 631,635.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.