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Finding the Fourth Proportional to 6,866,461.80, 10,299,692.70 and 5,277,047.40

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Solution

The fourth proportional to 6,866,461.80, 10,299,692.70 and 5,277,047.40 is: 7,915,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866,461.80 : 10,299,692.70 = 5,277,047.40 : x
  2. Step 2: Convert to fraction form
    6,866,461.80/10,299,692.70 = 5,277,047.40/x
  3. Step 3: Cross multiply
    6,866,461.80x = 10,299,692.70 × 5,277,047.40
  4. Step 4: Simplify right side
    6,866,461.80x = 54,351,966,583,333.98
  5. Step 5: Solve for x
    x = 54,351,966,583,333.98/6,866,461.80
  6. Step 6: Final answer
    x = 7,915,571.10

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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.