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Finding the Fourth Proportional to 6,240,612.80, 9,360,919.20 and 6,240,612.80

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Solution

The fourth proportional to 6,240,612.80, 9,360,919.20 and 6,240,612.80 is: 9,360,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240,612.80 : 9,360,919.20 = 6,240,612.80 : x
  2. Step 2: Convert to fraction form
    6,240,612.80/9,360,919.20 = 6,240,612.80/x
  3. Step 3: Cross multiply
    6,240,612.80x = 9,360,919.20 × 6,240,612.80
  4. Step 4: Simplify right side
    6,240,612.80x = 58,417,872,179,285.75
  5. Step 5: Solve for x
    x = 58,417,872,179,285.75/6,240,612.80
  6. Step 6: Final answer
    x = 9,360,919.20

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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.