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Finding the Fourth Proportional to 836,208.80, 1,153,999.80 and 468,692.67

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Solution

The fourth proportional to 836,208.80, 1,153,999.80 and 468,692.67 is: 646,813.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,208.80 : 1,153,999.80 = 468,692.67 : x
  2. Step 2: Convert to fraction form
    836,208.80/1,153,999.80 = 468,692.67/x
  3. Step 3: Cross multiply
    836,208.80x = 1,153,999.80 × 468,692.67
  4. Step 4: Simplify right side
    836,208.80x = 540,871,253,087.16
  5. Step 5: Solve for x
    x = 540,871,253,087.16/836,208.80
  6. Step 6: Final answer
    x = 646,813.63

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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.