Home / 1,119,128.40-1,678,692.60-277,680.15

Finding the Fourth Proportional to 1,119,128.40, 1,678,692.60 and 277,680.15

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Solution

The fourth proportional to 1,119,128.40, 1,678,692.60 and 277,680.15 is: 416,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,128.40 : 1,678,692.60 = 277,680.15 : x
  2. Step 2: Convert to fraction form
    1,119,128.40/1,678,692.60 = 277,680.15/x
  3. Step 3: Cross multiply
    1,119,128.40x = 1,678,692.60 × 277,680.15
  4. Step 4: Simplify right side
    1,119,128.40x = 466,139,612,971.89
  5. Step 5: Solve for x
    x = 466,139,612,971.89/1,119,128.40
  6. Step 6: Final answer
    x = 416,520.23

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Double scale
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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.