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Finding the Fourth Proportional to 6,576,627.80, 9,864,941.70 and 4,191,048.20

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Solution

The fourth proportional to 6,576,627.80, 9,864,941.70 and 4,191,048.20 is: 6,286,572.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,576,627.80 : 9,864,941.70 = 4,191,048.20 : x
  2. Step 2: Convert to fraction form
    6,576,627.80/9,864,941.70 = 4,191,048.20/x
  3. Step 3: Cross multiply
    6,576,627.80x = 9,864,941.70 × 4,191,048.20
  4. Step 4: Simplify right side
    6,576,627.80x = 41,344,446,154,889.94
  5. Step 5: Solve for x
    x = 41,344,446,154,889.94/6,576,627.80
  6. Step 6: Final answer
    x = 6,286,572.30

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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.