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Finding the Fourth Proportional to 6,289,000.80, 9,411,728.40 and 3,766,466.40

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Solution

The fourth proportional to 6,289,000.80, 9,411,728.40 and 3,766,466.40 is: 5,636,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289,000.80 : 9,411,728.40 = 3,766,466.40 : x
  2. Step 2: Convert to fraction form
    6,289,000.80/9,411,728.40 = 3,766,466.40/x
  3. Step 3: Cross multiply
    6,289,000.80x = 9,411,728.40 × 3,766,466.40
  4. Step 4: Simplify right side
    6,289,000.80x = 35,448,958,784,525.76
  5. Step 5: Solve for x
    x = 35,448,958,784,525.76/6,289,000.80
  6. Step 6: Final answer
    x = 5,636,659.93

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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.