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Finding the Fourth Proportional to 322,415.10, 483,622.65 and 265,334.40

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Solution

The fourth proportional to 322,415.10, 483,622.65 and 265,334.40 is: 398,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,415.10 : 483,622.65 = 265,334.40 : x
  2. Step 2: Convert to fraction form
    322,415.10/483,622.65 = 265,334.40/x
  3. Step 3: Cross multiply
    322,415.10x = 483,622.65 × 265,334.40
  4. Step 4: Simplify right side
    322,415.10x = 128,321,725,664.16
  5. Step 5: Solve for x
    x = 128,321,725,664.16/322,415.10
  6. Step 6: Final answer
    x = 398,001.60

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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.