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Finding the Fourth Proportional to 6,300,866.80, 9,451,300.20 and 4,789,212.40

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Solution

The fourth proportional to 6,300,866.80, 9,451,300.20 and 4,789,212.40 is: 7,183,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,300,866.80 : 9,451,300.20 = 4,789,212.40 : x
  2. Step 2: Convert to fraction form
    6,300,866.80/9,451,300.20 = 4,789,212.40/x
  3. Step 3: Cross multiply
    6,300,866.80x = 9,451,300.20 × 4,789,212.40
  4. Step 4: Simplify right side
    6,300,866.80x = 45,264,284,113,962.48
  5. Step 5: Solve for x
    x = 45,264,284,113,962.48/6,300,866.80
  6. Step 6: Final answer
    x = 7,183,818.60

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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.