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Finding the Fourth Proportional to 528,041.44, 728,439.60 and 301,627.36

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Solution

The fourth proportional to 528,041.44, 728,439.60 and 301,627.36 is: 416,098.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,041.44 : 728,439.60 = 301,627.36 : x
  2. Step 2: Convert to fraction form
    528,041.44/728,439.60 = 301,627.36/x
  3. Step 3: Cross multiply
    528,041.44x = 728,439.60 × 301,627.36
  4. Step 4: Simplify right side
    528,041.44x = 219,717,313,467.46
  5. Step 5: Solve for x
    x = 219,717,313,467.46/528,041.44
  6. Step 6: Final answer
    x = 416,098.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.